He has been privy to phone conversations with world leaders, consulted with Trump on his cabinet picks and even hosted him at Space X for the launch of the Starship rocket.
But how might the entrepreneur’s other views affect Trump policy?
Image: Elon Musk secured the confidence of Donald Trump during his election campaign. Pic: Reuters
The cause closest to Musk’s heart is pronatalism, a pro-birth political and personal ideology in which reproduction is the key goal of humanity.
Musk regularly posts on social media with fears about population decline, sometimes bordering on obsession.
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“Population collapse is coming… Earth is almost empty of humans,” he wrote recently.
“Instead of teaching fear of pregnancy we should teach fear of childlessness,” he added.
The frequency of these posts has increased in recent months.
Musk has at least 11 children, by three different women. Some of them have spent time with him in recent weeks at Donald Trump’s home.
Few understand the origin of Musk’s pro-birth views better than his own father, Errol Musk – an engineer and businessman from South Africa, who has a strained relationship with his son.
I speak to Errol on a video call from his home near Cape Town.
Image: Errol Musk
“Elon doesn’t try to push his opinion across, but he will have an opinion,” he says.
Errol has seven children himself, ranging in age from Elon at 53 to his youngest daughter, who is five. He’s also a pro-natalist.
“We’re not here to enjoy boating or flying or skiing or kite surfing, or something,” he says.
“We are here to continue being here. We should all be worried about declining populations, any country with any industry should be worried.”
Certain countries – like the United States, United Kingdom and Japan – do have ageing populations. But my conversation with Errol also reveals views which veer toward selective breeding.
I ask him about a comment Elon reportedly made to a biographer several years ago. Musk Jr apparently said: “If each successive generation of smart people has fewer kids, then that’s probably bad.”
I ask Errol Musk if that viewpoint is bordering on eugenics.
“I wouldn’t call it eugenics as such, but every nation has practiced a certain form of survival of the fittest.
“One need only go to England and go to the Cheltenham area, the horse breeding area, and say, ‘Look, we’re not going to breed the horses anymore by any form of standard. I’ve got a few old horses I’ve found in Nigeria and we’re going to just mix them with your race horses…’
“They’ll say, no, no, no, no, no,” he added.
Image: Elon Musk and his children
A more sanitised version of pro-family politics took centre stage on the campaign trail.
At a rally, Donald Trump declared himself “the father of fertilisation” and vowed to make in-vitro fertilisation (IVF) free for anyone who needs it.
Sky News has been invited inside an IVF clinic in California, the world capital for fertility.
The fertility institute is in the Encino area of Los Angeles and allows patients to choose the eye colour of their baby as well as its gender.
Dr Jeffrey Steinberg was among the first fertility doctors to offer gender selection. He is taking future President Trump’s pledge to offer free IVF at face value.
“Donald Trump for better or for worse, tends to keep his word. And the sort of the pooh-poohing of what he was saying… I think it’s vanished because they’re realising that it’s probably going to happen. So all the fertility centres are gearing up for a huge surge.”
Elon Musk has donated millions of dollars to fertility research.
“Musk is a technocrat,” Dr Steinberg says. “He’s an intellectual genius in multiple areas. And everything he touches seems to turn to gold.
“There’s not much that evolves as quickly as Musk’s technology. But IVF has done that, and I think he’s going to find that very attractive.”
While espousing his pronatalist views, Musk is navigating his own complicated family dynamic.
In the hills outside Austin, Texas, there are rumours he’s bought a multi-million-dollar compound to house some of his children and their mothers together, with his own property 10 minutes away.
Musk denies this is true.
But soon he could be helping to design family policy across the country.
Volodymyr Zelenskyy has said he is preparing for his meeting with Donald Trump – as Vladimir Putin issued his first comments following the US-Russia talks on the war in Ukraine.
The Ukrainian president will fly to Washington DC for the next stage of talks on Monday, which could pave the way for a three-way meeting alongside the Russian leader, Mr Trump has said.
It comes following a high-profile summit between the US president and Mr Putin, held in Alaskaon Friday.
The US president had heavily previewed the talks, threatening sanctions for Russia should there be no agreement on a ceasefire.
But a short news briefing following the summit ended with no mention of a ceasefire, no agreement on how to end the war, and little clarity about the next steps.
On Saturday, Mr Trump appeared to change his stance on what he hopes to achieve from the talks, indicating he wants a permanent peace settlement rather than a ceasefire, and announced the follow-up meeting with Mr Zelenskyy.
In a post on X, the Ukrainian president said he was grateful for the invitation and added: “It is important that everyone agrees there needs to be a conversation at the level of leaders to clarify all the details and determine which steps are necessary and will work.”
Image: Pic: Sergei Bobylev/ Sputnik/ Kremlin pool via AP
However, he said Russia had rebuffed “numerous calls for a ceasefire and has not yet determined when it will stop the killing”, which “complicates the situation”.
Mr Zelenskyy continued: “If they lack the will to carry out a simple order to stop the strikes, it may take a lot of effort to get Russia to have the will to implement far greater – peaceful coexistence with its neighbours for decades.
“But together we are working for peace and security. Stopping the killing is a key element of stopping the war.”
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23:24
Trump and Putin in Alaska – The Debrief
The Ukrainian president’s last visit to the White House earlier this year descended into a fiery spat with Mr Trump and his vice president JD Vance that saw him leave early.
Mr Putin issued his first statement on Saturday afternoon following the Friday’s summit, describing the talks as “timely and quite useful” – but said the “removal” of what he calls the “root causes” of the crisis “must underlie the settlement”.
He continued: “We definitely respect the US administration’s position which wants the hostilities to stop as soon as possible. So do we, and we would like to move forward with settling all issues by peaceful means.
“The conversation was very frank and substantive, which, in my view, moves us closer towards making necessary decisions.”
In calls on Saturday, Mr Trump told Mr Zelenskyy that the Russian leader had offered to freeze frontlines elsewhere if Kyiv agreed to withdraw from the eastern Donetsk and Luhansk regions, a person familiar with the matter told the Reuters news agency.
US envoy Steve Witkoff told Ukraine’s leader that Mr Putin had said there could be no ceasefire without this, and that the Russian president could pledge not to launch any new aggression against Ukraine as part of an arrangement.
Image: Keir Starmer welcomed Volodymyr Zelenskyy to Downing Street earlier this week. Pic: AP/ Kirsty Wigglesworth
Meanwhile, European leaders who make up the “coalition of the willing” are set to hold a conference call tomorrow ahead of the crunch talks between Mr Trump and Mr Zelenskyy.
In a statement on Saturday, Prime Minister Keir Starmer said the US leader’s efforts had “brought us closer than ever before to ending Russia’s illegal war in Ukraine” and that his leadership “in pursuit of an end to the killing should be commended”.
He said he supported the next phase of talks, but added: “In the meantime, until (Putin) stops his barbaric assault, we will keep tightening the screws on his war machine with even more sanctions.”
Donald Trump has said there are “many points” he and Vladimir Putin agreed on after holding critical talks on the war in Ukraine – but no deal has been reached yet.
Following the much-anticipated meeting in Alaska, which lasted more than two-and-a-half hours, the two leaders gave a short media conference giving little detail about what had been discussed, and without taking questions.
Mr Trump described the meeting as “very productive” and said there were “many points that we agreed on… I would say a couple of big ones”.
There are a few left, he added. “Some are not that significant. One is probably the most significant, but we have a very good chance of getting there…
“We haven’t quite got there, we’ve made some headway. There’s no deal until there’s a deal.”
Mr Putin described the negotiations as “thorough and constructive”, and said Russiawas “seriously interested in putting an end” to the war in Ukraine. He also warned Europe not to “torpedo nascent progress”.
Image: Donald Trump greets Vladimir Putin at Joint Base Elmendorf-Richardson, Alaska. Pic: AP/ Julia Demaree Nikhinson
After much build-up to the summit, it was ultimately not clear whether the talks produced meaningful steps towards a ceasefire in what has been the deadliest conflict in Europe in 80 years.
Mr Trump said he intended to speak with Ukrainian President Volodymyr Zelenskyy and other European leaders, who were excluded from the discussions, to brief them.
The news conference came after a grand arrival earlier in the day at the Elmendorf-Richardson military base in Anchorage, where the US president stepped down from Air Force One and later greeted his Russian counterpart with a handshake and smiles on a red carpet.
Mr Putin even travelled alongside Mr Trump in the presidential limousine, nicknamed “The Beast”.
It was the kind of reception typically reserved for close US allies, belying the bloodshed and the suffering in the war.
Before the talks, the two presidents ignored frantically-shouted questions from journalists – and Mr Putin appeared to frown when asked by one reporter if he would stop “killing civilians” in Ukraine, putting his hand to his ear as though to indicate he could not hear.
Our US correspondent Martha Kelner, on the ground in Alaska, said he was shouting “let’s go” – apparently in reference to getting the reporters out of the room.
This breaking news story is being updated and more details will be published shortly.
For Ukrainians, the spectacle of Vladimir Putin and Donald Trump meeting in Alaska will be repugnant.
The man behind an unprovoked invasion of their country is being honoured with a return to the world stage by the leader of a country that was meant to be their ally.
President Trump had threatened severe sanctions on Russia within 50 days if Russia didn’t agree to a deal. He had seemed close to imposing them before letting Putin wriggle off the hook yet again.
But they are not surprised. At every stage, Trump has either sided with Russia or at least given them the benefit of the doubt.
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3:44
‘Putin won’t mess around with me’
It is clear that Putin has some kind of hold over this American president, in their minds and many others.
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Ukraine wants three things out of these talks. A ceasefire, security guarantees and reparations. It is not clear at this stage that they will get any of them.
Ukrainians and their European allies are appalled at the naive and cack-handed diplomacy that has preceded this meeting.
Vladimir Putin is sending a team of foreign affairs heavyweights, adept at getting the better of opponents in negotiations.
There are, the Financial Times reported this week, no Russia specialists left at the Trump White House.
Instead, Trump is relying on Steve Witkoff, a real estate lawyer and foreign policy novice, who has demonstrated a haphazard mastery of his brief and breathtaking credulity with the Russians.
Former British spy chief Sir Alex Younger described him today as totally out of his depth. Trump, he says, is being played like a fiddle by Putin.
There is a fundamental misunderstanding of the conflict at the heart of the Trump administration’s handling of it. Witkoff and the president see it in terms of real estate. But it has never been about territory.
Vladimir Putin has made it abundantly clear that Ukraine’s existence as a sovereign democratic entity cannot be tolerated. He has made no pretence that his views on that have changed.
Ukrainians know that and fear any deal cooked up in Alaska will be used by Putin on the path towards that ultimate goal