The BBC contacted SpaceX, The Boring Company and X for comment.

His plans include regulatory rollback and ideas such as a national Bitcoin reserve, in which the government would stockpile the cryptocurrency."One of the most important issues to be determined over the next couple years is how crypto is regulated," said Virginia Canter, chief ethics counsel at the nonpartisan Citizens for Responsibility and Ethics in Washington. "Well now, he's an active player in the crypto market. How it could be regulated [could] affect his personal wealth, what kind of position he takes."

Nik Bhatia, founder of Bitcoin Layer, a firm that advocates investments in Bitcoin, said it would be a mistake to dismiss Trump's stance on crypto as driven only by his own financial interests."I don't see these moves motivated by self-interest - I see them representing the electorate," he said.But still, he said: "I think there probably is a conflict of interest in that his pro-crypto stance will benefit his company."

This week, Trump said he would nominate Paul Atkins, who has lobbied for the industry, to lead the Securities and Exchange Commission (SEC).He is widely expected to dial back enforcement at the agency, which polices publicly traded firms such as Trump Media for issues such as fraud and insider trading. The SEC oversaw a crackdown on the crypto industry under President Joe Biden.

Mr Sun, the World Liberty Financial investor, was caught up in the SEC crackdown last year, after the agency charged him and his company with failing to properly register with the government while selling certain digital assets, among other charges.

Under new leadership, the agency could very well drop the case, said John Coffee, a professor at Columbia Law School and an expert in securities law."Twenty-six miles, I've never done anything like that before. But for my girl, I would do 26 or 50 - whatever," he says. "The pain doesn't matter, I'm going to do it."

He is raising money to build a newwhere Alice was a pupil.

It will be dedicated to Alice and Bebe, who previously attended the school.Alexandra Aguiar, Alice's mum, says her daughter would have loved to see "her friends play on the playground that [bears] her name".