Shares of Tesla slid about 5% Thursday as CEO Elon Musk continued his relentless pressure on Congress to “KILL” President Donald Trump‘s spending bill.

Musk in recent days has threatened to primary lawmakers who vote for the bill and called it a “disgusting abomination,” marking a significant shift in his comments about the administration.

The fall in shares comes as the EV maker saw a 22% rally in May despite weak sales numbers, with Musk wrapping his time as Trump’s Department of Government Efficiency, or DOGE.

Shares are down more than 20% this year and well off the high of $488.54 reached on Dec. 18.

Since Musk’s special government employee term ended Friday, he’s appeared at odds with the Trump administration and gone on a full assault against the president’s signature tax-cut bill.

“One of the things about Elon is when he goes all in, he goes all in,” Walter Isaacson, who wrote a book about Musk, told CNBC’s “Squawk Box” Thursday.

“He is somebody who’s not exactly calibrated in these things and he is seriously upset,” Isaacson said.

The SpaceX and xAI CEO posted a stream of attacks against the Trump bill on X Wednesday.

Meanwhile, Tesla is facing more fundamental problems with plummeting sales of its electric vehicles in major markets in Europe, and a declining brand reputation in the West.

Tesla is also under pressure to launch a long-delayed, driverless ride hailing service this month in Austin.

While Musk has said that Tesla is already testing driverless vehicles in that market, its primary competitor Waymo is already operating a major commercial robotaxi service there in partnership with Uber.

MongoDB shares surged 15% after the software company surpassed fiscal first-quarter earnings expectations and raised its outlook, citing growing confidence in its cloud-based database service.

Revenues hit $549 million during the period, jumping 22% from more than $450 million in the year-ago period. That topped a $528 million estimate from analysts polled by LSEG. Adjusted earnings per share reached $1.00, surpassing the 66 cents per share projected by analysts.

“We are confident in our position to drive profitable growth as we benefit from this next wave of application development,” said CEO and president Dev Ittycheria in a release.

For the 2026 fiscal year, MongoDB raised its guidance, saying it now expects between $2.25 billion and $2.29 billion in revenue and $2.94 to $3.12 in adjusted earnings per share. MongoDB previously forecast revenues between $2.24 billion and $2.28 billion and adjusted earnings of $2.44 to $2.62 per share for the year.

MongoDB expects revenues to range between $548 million and $553 million in the current fiscal quarter. Adjusted earnings are forecasted to reach 62 cents to 66 cents per share during the period.

During a company earnings call, finance chief Mike Berry cited “continued confidence” in its Atlas cloud-based database services and “timing differences” in its Enterprise Advanced database business as the reason for the guidance boost. Berry took over the role at the end of May.

MongoDB said revenues for Atlas during the quarter grew 26% from a year ago and accounted for 72% of total revenues.

“As digital transformation and public cloud adoption remain top priorities, we believe MongoDB is well positioned to capitalize on growth from net new workloads and re-platforming of legacy applications,” wrote Goldman Sachs analyst Kash Rangan in a note to clients.

The database software maker’s net loss narrowed from a year ago to $37.6 million, or a loss of 46 cents per share. That’s down from a net loss of $80.6 million, or a loss of $1.10 per share last year.

The company also boosted its share buyback plan by $800 million to $1 billion.

WATCH: Access to capital will profoundly impact the performance of AI models: MongoDB CEO Dev Ittycheria

Nintendo‘s flagship Switch 2, the successor to one of its most popular consoles, went on sale on Thursday with excitement and hype from fans leading to special store opening hours and shortages in some markets.

The Japanese gaming giant is hoping the console can help sustain a monster rally in its shares which have risen nearly five-fold since the original Switch was released in March 2017.

Nintendo is also hoping the Switch 2 can match the success of the original Switch, which has sold more than 152 million units and is the second-highest-selling device in the company’s history, behind the Nintendo DS.

And current demand looks strong, according to analysts.

“Today is the biggest console launch of all time, so as expected, there is a frenzy of Nintendo fans checking stock availabilities at their local stores or eagerly awaiting deliveries,” George Jijiashvili, senior principal analyst at advisory firm Omdia, told CNBC by email.

The Switch’s popularity is widely credited to its innovative portable design, which merged consoles with mobile gaming. People could play the game on their TV, then attach the controllers to the console’s display and take it with them.

Last month, Nintendo said it expects to sell 15 million units of the Switch 2 console in the fiscal year ending March 2026. However, analysts have said that is conservative.

Kantan Games’ Toto said he is forecasting sales of 20 million units in the first year. Omdia said it is expecting sales of 14.4 million Switch 2 consoles in 2025 alone, which would be ahead of the original Switch’s debut year.