Google CEO, Sundar Pichai (: and Jonathan Kanter, assistant attorney general of antitrust for the US Department of Justice (R).
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The biggest tech monopoly trial since the Department of Justice challenged Microsoft more than 20 years ago is set to begin Tuesday, kicking off a new chapter of anti-monopoly enforcement in the U.S.
Over the next few months, the DOJ and a collection of state attorneys general will make their case to a D.C. District Court judge for why Google has allegedly violated anti-monopoly law through exclusive agreements with mobile phone manufacturers and browser makers to make its search engine the default for consumers. Google, in turn, will seek to tell the judge why its behavior is not anti-competitive and instead provides a better experience for consumers.
While the trial marks the tech sector’s first major anti-monopoly proceeding in decades, Google is squarely in the middle of its antitrust battles. It’s already faced major fines over its competitive practices in Europe, and months after it wraps arguments in the search trial, it’s set to face a second challenge from the DOJ in the Eastern District of Virginia over its advertising technology business.
At stake in this trial is the chance for the DOJ to prove it can bring a successful anti-monopoly case in the modern digital age. The DOJ will likely strive to show that enforcement of the antitrust laws, not the absence of them, is what can unlock innovation, just as many believe its victory in the Microsoft case paved the way for a generation of companies including Google to thrive in a more open internet ecosystem.
For Google, it’s fighting to preserve a long-standing business practice that it sees as an important way to make its search products accessible to consumers, which it says creates the best experience for them.
Here’s what to expect as the trial begins on Tuesday.
What the trial is about
A key focus of the trial will be on two kinds of agreements Google has made with other companies. One type of agreement relates to the payments Google makes to browser makers like Apple to be the default search engine on the iPhone’s Safari browser and other devices. The other type is Google’s contracts with phone manufacturers that run Google’s Android operating system, which require them to preload certain Google apps.
The government argues that these arrangements locked up important distribution channels for search, creating overwhelming barriers to entry for rival search engines to compete with. Because of Google’s alleged dominant position in the market, the government contends that these moves violated antitrust law by illegally maintaining a monopoly.
The states will also argue an additional claim: that Google failed to make its popular search advertising tool, Search Ads 360 (SA360), sufficiently interoperable with Microsoft’s Bing. Instead, they allege in the complaint, Google “favors advertising on its own platform and steers advertiser spending towards itself by artificially denying advertisers the opportunity to evaluate the options that would serve those advertisers best.”
Colorado Attorney General Phil Weiser, who has led the coalition of states, told CNBC in an interview that their case and the DOJ’s “are really hand-in-glove.”
“The cases have very compatible theories, and the core message from both is that Google’s monopoly power has been abused, harming competition and hurting consumers,” Weiser said.
Colorado attorney general Phil Weiser speaks during a press conference announcing an indictment of the three Aurora police officers and two Aurora fire paramedics in the death of Elijah McClain on Wednesday, September 1, 2021.
Aaron Ontiveroz | MediaNews Group | The Denver Post via Getty Images
One argument that won’t make it to trial are the states’ allegations that Google suppressed vertical search providers, or search services that are focused on a specific topic, such as Yelp and Tripadvisor. The judge did not allow that claim to move forward. Still, antitrust experts interviewed for this article said that in some ways, the omission could actually help the government deliver a more straightforward and streamlined argument by dedicating more time to other theories.
The government is likely to argue that Google’s behavior has stifled innovation that would otherwise benefit consumers. That could be because the high barriers to entry in the market could discourage rivals and because the lack of competition could lessen Google’s own incentive to innovate.
But Google has maintained that its actions have legitimate business purposes and are made to enhance consumer experience with its products.
Points of conflict
One likely area of disagreement will be how the government defines the market that Google has allegedly monopolized. While Google did not contest the definition of the general search market in its motion to dismiss the case, it could still do so in its trial arguments.
While the government defines the general search market as including direct Google rivals like Bing and DuckDuckGo, Google has alluded to other tools that consumers commonly use to search online. For example, in a blog postpreviewing its defense, Google’s president of global affairs, Kent Walker, pointed to an Insider Intelligence report that found 60% of U.S. product searches start on Amazon. Walker wrote that the abundance of places where consumers can use online search shows that Google hasn’t foreclosed competition.
Still, much of the trial is likely to focus on whether Google’s alleged exclusionary contracts can be considered bad acts used to further its monopoly. That means the behavior doesn’t have a legitimate business purpose “besides aggrandizing or keeping your market power,” according to Rebecca Haw Allensworth, an antitrust professor at Vanderbilt Law School.
“I think the judge is probably inclined to find that Google has substantial monopoly power,” said Bill Kovacic, who teaches antitrust at George Washington University Law School and is a former FTC chairman. “So the attention is going to be focused on the behavior. And one of Google’s principal themes will be that everything we do gives the user a better experience. And that the net effect of each practice is to make the user better off than they would be otherwise.”
One important part of the case will be examining the payments Google makes to Apple to secure its place as the iPhone’s default search engine in its Safari browser. On the one hand, the government may argue that the billions of dollars Google is estimated to spend on that position shows just how valuable it sees that placement and the level of sacrifice Google is willing to take on to be the default, according to Allensworth.
Google CEO Sundar Pichai (L) and Apple CEO Tim Cook (R) listen as U.S. President Joe Biden speaks during a roundtable with American and Indian business leaders in the East Room of the White House on June 23, 2023 in Washington, DC.
Anna Moneymaker | Getty Images
On the other hand, Allensworth added, Google might argue that prominent placement in Apple’s browser means more eyeballs for its own advertisers, and ultimately more revenue, which could be a legitimate business justification.
Allensworth said she expects the government to bring in experts that attempt to argue that the payments for default placement “economically don’t make sense,” beyond an effort to cut out rivals.
One additional element that will be discussed is Google’s alleged destruction of evidence once it reasonably expected litigation. The government alleged that Google failed to preserve chat messages between employees that should have been under legal hold and prevented from auto-deleting.
“That type of destruction and failure to preserve evidence is really troubling,” Weiser said. “And the judge has said that’s something he’s willing to consider in this case. And we just want to underscore that as the judge looks at this case, we didn’t have full access to the evidence because of the conduct of Google.”
Google has said that company officials “strongly refute the DOJ’s claims.”
“Our teams have conscientiously worked for years to respond to inquiries and litigation,” a spokesperson said in a statement earlier this year. “In fact, we have produced over 4 million documents in this case alone, and millions more to regulators around the world.”
What to expect on Tuesday
The first day of the trial will set up the arguments for what could take as long as 10 weeks. Each party will give its opening statements before the DOJ begins presenting its case-in-chief. That means the government will call on both expert and industry witnesses to help make its case.
After the DOJ concludes its main presentation, the states will have their turn, followed by Google. Afterward, the plaintiffs will likely get a chance to rebut Google’s arguments.
Antitrust trials are a long process, and even if Google is found liable at this stage, there could be another separate proceeding to determine the best solution for resolving the concerns.
In the next few weeks, one of the most interesting things to watch for will be who is called to testify. In addition to experts like economists, expect to see Google executives called to the stand, potentially including CEO Sundar Pichai. The court will likely also hear testimony from third parties referenced in the case, like Mozilla and Apple or rivals like Microsoft or DuckDuckGo.
What’s at stake
The case’s outcome will be a significant statement on the status of antitrust law in the U.S. and how it should be applied to dominant tech firms. While the court will consider specific remedies only if Google is found liable for the allegations at this stage, a favorable ruling for the government could ultimately result in restrictions on Google’s business practices or even the break up of parts of its business.
Google would view such a ruling as ultimately harmful for consumers.
“A ruling that says your products are too good or too successful, you can no longer pay to promote them,” would be out of step with American law and “not good for the ecosystem and not good for consumers,” according to Google’s Walker.
But supporters of the government’s case believe consumers will be subject to a deteriorating search experience if the court rejects its arguments.
“If Google is allowed to maintain its monopoly through illegal default search agreements while hampering competition, what that means is Google maintains its monopoly with a worse product,” said Lee Hepner, legal counsel at the American Economic Liberties Project, which advocates for more enforcement of antitrust laws in markets including tech.
The outcome will also be an important signal of the ability of the government to bring successful tech antitrust cases in the future, and whether current law can sufficiently account for the nuances of digital markets.
For the government, winning this trial would be a significant victory, strengthening the DOJ’s currently mixed record in court under antitrust chief Jonathan Kanter and signaling it can tell a compelling story about technical digital markets. A loss would be a blow to those efforts, but would likely be used as fodder in Congress to push for new antitrust laws.
For the government, winning the trial may also be seen as a chance to open the digital ecosystem for the next generation of tech businesses. Many credit the Microsoft case with that effect, and this trial comes as artificial intelligence ushers in a new wave of technology and likely many new companies.
But Matt Schruers, president of the Computer & Communications Industry Association, of which Google is a member, sees the rise of AI as complicating the government’s arguments. Google is one of the leaders in generative AI with its chatbot Bard, though OpenAI released ChatGPT first.
“That argument could not come at a more awkward time for the government, given the amazing innovations that we’ve seen come to market by companies that are not Google,” Schruers said. “We’re in the midst of an overwhelming sea change in technology, and the government has to say, ‘These contracts are holding technological innovation back.'”
Silicon Valley executives and financiers publicly opened their wallets in support of President Donald Trump’s 2024 presidential run. The early returns in 2025 aren’t great, to say the least.
Following Trump’s sweeping tariff plan announced Wednesday, the Nasdaq suffered steep consecutive daily drops to finish 10% lower for the week, the index’s worst performance since the beginning of the Covid pandemic in 2020.
The tech industry’s leading CEO’s rushed to contribute to Trump’s inauguration in January and paraded to Washington, D.C., for the event. Since then, it’s been a slog.
The market can always turn around, but economists and investors aren’t optimistic, and concerns are building of a potential recession. The seven most valuable U.S. tech companies lost a combined $1.8 trillion in market cap in two days.
Apple slid 14% for the week, its biggest drop in more than five years. Tesla, led by top Trump adviser Elon Musk, plunged 9.2% and is now down more than 40% for the year. Musk contributed close to $300 million to help propel Trump back to the White House.
Nvidia, Meta and Amazon all suffered double-digit drops for the week. For Amazon, a ninth straight weekly decline marks its longest such losing streak since 2008.
With Wall Street selling out of risky assets on concern that widespread tariff hikes will punish the U.S. and global economy, the fallout has drifted down to the IPO market. Online lender Klarna and ticketing marketplace StubHub delayed their IPOs due to market turbulence, just weeks after filing with the Securities and Exchange Commission, and fintech company Chime is also reportedly delaying its listing.
CoreWeave, a provider of artificial intelligence infrastructure, last week became the first venture-backed company to raise more than $1 billion in a U.S. IPO since 2021. But the company slashed its offering, and trading has been very volatile in its opening days on the market. The stock plunged 12% on Friday, leaving it 17% above its offer price but below the bottom of its initial range.
“You couldn’t create a worse market and macro environment to go public,” said Phil Haslett, co-founder of EquityZen, a platform for investing in private companies. “Way too much turbulence. All flights are grounded until further notice.”
CoreWeave investor Mark Klein of SuRo Capital previously told CNBC that the company could be the first in an “IPO parade.” Now he’s backtracking.
“It appears that the IPO parade has been temporarily halted,” Klein told CNBC by email on Friday. “The current tariff situation has prompted these companies to pause and assess its impact.”
‘Cave rapidly’
During last year’s presidential campaign, prominent venture capitalists like Marc Andreessen backed Trump, expecting that his administration would usher in a boom and eliminate some of the hurdles to startup growth set up by the Biden administration. Andreessen and his partner, Ben Horowitz, said in July that their financial support of the Trump campaign was due to what they called a better “little tech agenda.”
A spokesperson for Andreessen Horowitz declined to comment.
Some techies who supported Trump in the campaign have taken to social media to defend their positions.
Venture capitalist Keith Rabois, a managing director at Khosla Ventures, posted on X on Thursday that “Trump Derangement Syndrome has morphed into Tariff Derangement Syndrome.” He said tariffs aren’t inflationary, are effective at reducing fentanyl imports, and he expects that “most other countries will cave and cave rapidly.”
That was before China’s Finance Ministry said on Friday that it will impose a 34% tariff on all goods imported from the U.S. starting on April 10.
At Sequoia Capital, which is the biggest investor in Klarna, outspoken Trump supporter Shaun Maguire, wrote on X, “The first long-term thinking President of my lifetime,” and said in a separate post that, “The price of stocks says almost nothing about the long term health of an economy.”
However, Allianz Chief Economic Advisor Mohamed El-Erian warned on Friday that Trump’s extensive raft of import tariffs are putting the U.S. economy at risk of recession.
“You’ve had a major repricing of growth prospects, with a recession in the U.S. going up to 50% probability, you’ve seen an increase in inflation expectations, up to 3.5%,” he told CNBC’s Silvia Amaro on the sidelines of the Ambrosetti Forum in Cernobbio, Italy.
Former Microsoft CEOs Bill Gates, left, and Steve Ballmer, center, pose for photos with CEO Satya Nadella during an event celebrating the 50th Anniversary of Microsoft on April 4, 2025 in Redmond, Washington.
Stephen Brashear | Getty Images
Meanwhile, executives at tech’s megacap companies were largely silent this week, and their public relations representatives declined to provide comments about their thinking.
Microsoft CEO Satya Nadella was in the awkward position on Friday of celebrating his company’s 50th anniversary at corporate headquarters in Redmond, Washington. Alongside Microsoft’s prior two CEOs, Bill Gates and Steve Ballmer, Nadella sat down with CNBC’s Andrew Ross Sorkin for a televised interview that was planned well before Trump’s tariff announcement.
When asked about the tariffs at the top of the interview, Nadella effectively dodged the question and avoided expressing his views about whether the new policies will hamper Microsoft’s business.
Ballmer, who was succeeded by Nadella in 2014, acknowledged to Sorkin that “disruption is very hard on people” and that, “as a Microsoft shareholder, this kind of thing is not good.” Ballmer and Gates are two of the 12 wealthiest people in the world thanks to their Microsoft fortunes.
C-suites may not be able to stay quiet for long, especially if the recent turmoil spills into next week.
Lise Buyer, who previously helped guide Google through its IPO and now works as an adviser to companies going public, said there’s no appetite for risk in the market under these conditions. But there is risk that staffers get jittery, and they’ll surely look to their leaders for some reassurance.
“Until markets settle out and we have the opportunity to access valuation levels, public company CEOs should work to calm potentially distressed employees,” Buyer said in an email. “And private company managements should refine plans to get by on dollars already in the treasury.”
— CNBC’s Hayden Field, Jordan Novet, Leslie Picker, Annie Palmer and Samantha Subin contributed to this report.
Elon Musk has been promising investors for about a decade that Tesla’s cars are on the verge of turning into robotaxis, capable of driving themselves cross-country, after one big software update.
That hasn’t happened yet.
What Tesla offers is a sophisticated, but only partially automated, driving system that’s marketed in the U.S. as its Full Self-Driving (Supervised) option, though many Tesla fans refer to it as FSD. In China, Tesla recently changed the system’s name to “intelligent assisted driving.”
Full Self-Driving, as it was previously called, relies on cameras and software to enable features like automatic navigation on highways and city streets, or automatic braking and slowing in response to traffic lights and stop signs.
Tesla owner’s manuals warn users that FSD “is a hands-on feature” that requires them to pay attention to the road at all times. “Keep your hands on the steering wheel at all times, be mindful of road conditions and surrounding traffic,” the manuals say.
But many of Tesla’s customers ignore the fine print and use the system hands-free anyway.
Tesla’s partially automated driving systems have been a source of inspiration for its stalwart fans. But they’ve also caused controversy and concern for public safety after reports of injurious and fatal collisions where Tesla’s standard Autopilot or premium FSD systems were known to be in use.
FSD does a lot of things “amazingly well,” said Guy Mangiamele, a professional test driver for automotive consulting firm AMCI Testing, during a recent long drive in Los Angeles. But he added that “the times that it trips up, you could kill somebody or you could hurt yourself.”
The pressure has never been higher on Tesla to elevate the technology and deliver on Musk’s long-delayed promises.
The Tesla CEO is the wealthiest person in the world and was the biggest financial backer of President Donald Trump’s 2024 campaign. Since Trump’s January inauguration, Musk has been leading the administration’s Department of Government Efficiency effort to drastically slash the federal workforce and government spending.
The DOGE team has been connected to more than 280,000 layoff plans for federal workers and contractors impacting 27 agencies over the last two months, according to data tracked by Challenger Gray, the executive outplacement firm.
Musk’s work with DOGE – along with his frequently incendiary political rhetoric and endorsement of Germany’s far-right, anti-immigrant party AfD – has led to a tremendous backlash against Tesla.
Protests, boycotts and even criminal acts of vandalism have targeted the electric vehicle maker in recent months and led many prospective Tesla customers to turn to other brands. Meanwhile, existing Tesla owners have been trading in their EVs at record levels, according to data from Edmunds.
Tesla’s stock dropped 36% through the first three months of 2025, representing its steepest decline since 2022 and third-biggest slide for any quarter since the EV maker went public in June 2010. Tesla also reported 336,681 vehicle deliveries in the first quarter of 2025, a 13% decline from the same period a year ago.
Product unveilings and a “robotaxi launch” expected from Tesla in Austin, Texas, this year could revitalize investors’ sentiment about the company and hopefully lift its share price, Piper Sandler analysts wrote in a note following the worse-than-expected deliveries report.
On Tesla’s last earnings call, Musk promised investors that Tesla will finally start its driverless ride-hailing service in Austin in June.
To see whether the company’s FSD technology is anywhere close to a robotaxi-ready release, CNBC spent months riding along with Tesla owners who use Full Self-Driving (Supervised) and speaking with automotive safety experts about their impressions.
Auto-tech enthusiast and Tesla owner Chris Lee, host of the YouTube channel EverydayChris, told CNBC that Tesla’s system “definitely has a ways to go, but the fact that it’s able to go from where it was three years ago to today, is insane.”
Many experts, including Telemetry Vice President of Market Research Sam Abuelsamid, remain skeptical. There’s been “no evidence” that FSD is “anywhere close to being ready to be used in an unsupervised form” by June, said Abuelsamid, whose firms specializes in automotive intelligence.
Tesla FSD will “often work really well, particularly in daytime conditions” but then “randomly, in a scenario where it did fine previously, it will fail,” said Abuelsamid, adding that those scenarios can be unpredictable and dangerous.
Watch the video to learn more about the evolution of Tesla’s Full Self-Driving (Supervised) and whether it will be robotaxi-ready this June.
Microsoft owns lots of Nvidia graphics processing units, but it isn’t using them to develop state-of-the-art artificial intelligence models.
There are good reasons for that position, Mustafa Suleyman, the company’s CEO of AI, told CNBC’s Steve Kovach in an interview on Friday. Waiting to build models that are “three or six months behind” offers several advantages, including lower costs and the ability to concentrate on specific use cases, Suleyman said.
It’s “cheaper to give a specific answer once you’ve waited for the first three or six months for the frontier to go first. We call that off-frontier,” he said. “That’s actually our strategy, is to really play a very tight second, given the capital-intensiveness of these models.”
Suleyman made a name for himself as a co-founder of DeepMind, the AI lab that Google bought in 2014, reportedly for $400 million to $650 million. Suleyman arrived at Microsoft last year alongside other employees of the startup Inflection, where he had been CEO.
More than ever, Microsoft counts on relationships with other companies to grow.
It gets AI models from San Francisco startup OpenAI and supplemental computing power from newly public CoreWeave in New Jersey. Microsoft has repeatedly enriched Bing, Windows and other products with OpenAI’s latest systems for writing human-like language and generating images.
Microsoft’s Copilot will gain “memory” to retain key facts about people who repeatedly use the assistant, Suleyman said Friday at an event in Microsoft’s Redmond, Washington, headquarters to commemorate the company’s 50th birthday. That feature came first to OpenAI’s ChatGPT, which has 500 million weekly users.
Through ChatGPT, people can access top-flight large language models such as the o1 reasoning model that takes time before spitting out an answer. OpenAI introduced that capability in September — only weeks later did Microsoft bring a similar capability called Think Deeper to Copilot.
Microsoft occasionally releases open-source small-language models that can run on PCs. They don’t require powerful server GPUs, making them different from OpenAI’s o1.
OpenAI and Microsoft have held a tight relationship shortly after the startup launched its ChatGPT chatbot in late 2022, effectively kicking off the generative AI race. In total, Microsoft has invested $13.75 billion in the startup, but more recently, fissures in the relationship between the two companies have begun to show.
Microsoft added OpenAI to its list of competitors in July 2024, and OpenAI in January announced that it was working with rival cloud provider Oracle on the $500 billion Stargate project. That came after years of OpenAI exclusively relying on Microsoft’s Azure cloud. Despite OpenAI partnering with Oracle, Microsoft in a blog post announced that the startup had “recently made a new, large Azure commitment.”
“Look, it’s absolutely mission-critical that long-term, we are able to do AI self-sufficiently at Microsoft,” Suleyman said. “At the same time, I think about these things over five and 10 year periods. You know, until 2030 at least, we are deeply partnered with OpenAI, who have [had an] enormously successful relationship for us.
Microsoft is focused on building its own AI internally, but the company is not pushing itself to build the most cutting-edge models, Suleyman said.
“We have an incredibly strong AI team, huge amounts of compute, and it’s very important to us that, you know, maybe we don’t develop the absolute frontier, the best model in the world first,” he said. “That’s very, very expensive to do and unnecessary to cause that duplication.”