Musk pledges to support primary challenges to Republicans who back Trump megabill

Elon Musk vowed Monday he would back primary challengers to any Republicans who supported President Trump’s megabill, a statement that comes after the two men's relationship devolved into a bitter public feud earlier this month.

“Every member of Congress who campaigned on reducing government spending and then immediately voted for the biggest debt increase in history should hang their head in shame!” Musk wrote on his X platform.

“And they will lose their primary next year if it is the last thing I do on this Earth,” he added.

In a separate post, he specifically called out House Freedom Caucus Chair Andy Harris (R-Md.) and fellow member Rep. Chip Roy (R-Texas).

“How can you call yourself the Freedom Caucus if you vote for a DEBT SLAVERY bill with the biggest debt ceiling increase in history?” he asked, tagging the two lawmakers.

Republicans are racing to pass Trump’s megabill this week ahead of their July 4 self-imposed deadline. Senators are participating in a lengthy vote-a-rama on Monday before they’ll finally vote on the legislation; the Senate GOP can lose support from three Republicans. The House will need to take up and pass the legislation after it goes through the Senate, before it heads to Trump’s desk.

House Majority Whip Tom Emmer (R-Minn.) suggested a House vote could come as soon as Wednesday morning.

Ever since Musk departed the White House, the Tesla CEO has been a vocal critic of Trump’s tax and spending bill, which looks to make the 2017 tax cuts permanent, among other priorities, and has been projected to add trillions of dollars to the deficit, according to multiple analyses.

In an X post on Saturday, Musk derided the bill as “utterly insane and destructive,” saying that the latest version from the Senate “will destroy millions of jobs in America and cause immense strategic harm to our country!”

Musk’s latest post comes just weeks after the Tesla CEO and Trump had a public falling out, with the two drawing personal barbs. Musk said he later regretted some of his social media posts, saying “they went too far.”

But Musk’s vow to primary Republicans supporting the legislation is especially notable given that the former Trump advisor spent tens of millions of dollars supporting Trump’s 2024 bid last cycle, underscoring the rift between the two men.