Trump added that he has "no intention of speaking" to Musk anytime soon, saying "I’m too busy doing other things.”

But Mr. Trump’s warnings to his former ally are backed by several ways the White House could punish the world’s richest man.

"Shame on those who voted for it: you know you did wrong," the Tesla CEO wrote, citing projections that the legislation would add more than $2 trillion to the national debt.

President Trump threatened Elon Musk with "serious consequences" should he decide to fund Democrats in upcoming elections, the latest in the ongoing public spat between the world's richest man and the world's arguably most powerful one.

The war between Donald Trump and Elon Musk showed no signs of cooling off on Saturday after the president spoke with NBC News and and warned the billionaire to keep his nose out of any upcoming elections.

US President Donald Trump threatened his former advisor Elon Musk with “serious consequences” Saturday if the tech billionaire seeks to punish Republicans who vote for a controversial spending Bill. The comments by Trump to NBC News come after the relationship between the world’s most powerful person and the world’s richest imploded in bitter and spectacular fashion last week.

The tech billionaire had claimed the US president appeared in files relating to the disgraced paedophile Jeffrey Epstein, as he traded blows with his former colleague in a dramatic public row.

US President Donald Trump on Saturday warned Elon Musk of “serious consequences” if the billionaire backs efforts to unseat Republicans who support a