(The Hill) The public and messy feud between President Donald Trump and tech billionaire Elon Musk was reignited this week over the president’s “big, beautiful bill” as Congress works to get the massive package to Trump’s desk by July 4. 

Musk on Monday said he would back primary challengers to any Republicans who supported Trump’s megabill and promised to donate to lawmakers who have drawn the administration’s ire, like Rep. Thomas Massie, R-Ky.. Trump then threatened to cut government contracts for Musk’s companies and left open the possibility of deporting the South African CEO.

Trump and Musk both had signaled they were ready to move on from their bitter fight nearly a month ago, but the president’s megabill that Musk has called “political suicide for the Republican Party” has brought the two men back to sniping.

“I think Washington is confused by the on-off again relationship between Trump and Musk. It looked like they had patched things up around a month ago,” said Republican strategist Ron Bonjean, adding that the tech billionaire’s X posts “came out of nowhere for most people” after it seemed like he was “looking to bury the hatchet” in recent weeks.

Trump on Tuesday shrugged off concerns that the GOP could be swayed by Musk’s megabill criticism, but doubled down on his suggestion that the federal government take a look at the contracts Musk’s companies have. Musk and his businesses have received at least $38 billion in government contracts, loans, subsidies and tax credits over the years, according to a February Washington Post analysis.

“No, I don’t think so. I think what’s going to happen is DOGE is going to look at Musk. And if DOGE looks at Musk, we’re going to save a fortune,” Trump said during a visit to a new migrant detention facility in Florida. “I don’t think he should be playing that game with me.”

It’s a sharp change in tone from the president, who had previously said he thinks he could make amends with Musk after their nasty disagreement last month.

Asked on Tuesday morning what happened to Musk, Trump replied, “Nothing.”

“He’s upset that he’s losing his EV mandate, and he’s upset. He’s very upset about things. But he could lose a lot more than that. I can tell you right now, Elon can lose a lot more than that,” he said, arguing that Musk’s criticism of the bill is over a key provision that takes away the tax credit for electric vehicles that benefited his company.

The president also signaled he would consider deporting the South African-born U.S. citizen, whom he had elevated to lead the cost-cutting Department of Government Efficiency (DOGE) until late May.

“I don’t know. I think we’ll have to take a look. We might have to put DOGE on Elon. You know what DOGE is? DOGE is the monster that might have to go back and eat Elon. Wouldn’t that be terrible,” Trump said. 

The president has praised the massive cuts and sweeping changes to the federal government under DOGE, despite pushback over job losses and service disruptions, and gifted Musk a gold key to the White House in May as recognition of the billionaire’s work. 

But now, Musk is arguing that Trump’s ambitious tax and spending package undermines DOGE efforts to rein in spending.

As senators squabbled over the bill this past week, Musk blasted the spending package as “utterly insane” and “political suicide” for the GOP. On Monday, he renewed his calls for a new political party as he lamented estimates for how much the bill would raise the debt ceiling. 

“Musk is unique in that he has enough money to probably actually impact a two-party system,” said a former Trump campaign official.

“Republicans obviously face challenges in their ability to govern, and so do Democrats, but right now all Trump wants is a bill with his name on it that he thinks is a good bill.  A lot of Republicans in Congress know this isn’t a good bill, but fear is a motivator,” the former campaign official said. “We’re a two-party country, pure and simple. Musk is probably the only person that could change that given his money, but he’d have to find unique, credible candidates to attract the disillusioned voter who thus far has leaned Trump.”

The Senate’s version of the bill, which narrowly passed earlier on Tuesday, would increase the deficit by nearly $3.3 trillion between 2025 and 2034, roughly $1 trillion more than the House-passed version, according to the nonpartisan Congressional Budget Office.

“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 X.

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

The promises to back primary challengers against Republicans who support the megabill come after Musk the world’s richest man, with a staggering $397 billion net worth, according to Forbes signaled plans this spring to step back from political spending after injecting hundreds of millions into the 2024 election. 

“He could absolutely become a thorn in the side of the Republican Party by funding primary challengers. That would cause some headaches, no question about it,” Bonjean said.

But Trump “holds most of the cards,” Bonjean said, pointing to Trump’s comments on the possibility of deportation and his authority over contracts that Musk and his companies touch.

“I don’t think any candidate wants to have the world’s richest man open up his war chest against him. But I think most members of Congress would rather have Trump’s endorsement than Musk’s millions,” said GOP strategist Alex Conant.  

But, one source who worked in Trump’s first administration described the situation with Musk as not overly concerning, given the support the president has from GOP lawmakers.

“The White House doesn’t love the renewed back-and-forth, but no one sees this as a major political threat. It looks more like a flare-up than a serious inflection point,” the source said. “This is Trump’s party. The idea that rank-and-file Republicans would suddenly abandon him because of a feud with Elon just doesn’t hold water.”

Musk spent at least $250 million through his America PAC on Trump’s election. During his tenure with DOGE, he kept an office in the White House complex, slept over in the Lincoln bedroom and touted that he and Trump were “good friends.” 

Trump also consistently defended Musk while he faced backlash over his work to make cuts to federal spending and as Teslas were vandalized around the country.

When asked about the reignited feud, the White House argued that the president is saving money for taxpayers with his policies.

“Many Presidents have promised, but none other than President Trump has delivered to actually make government more efficient and root out waste, fraud, and abuse in Washington, and that mission is moving full steam ahead,” White House spokesperson Harrison Fields said in an emailed statement. “Under the President’s leadership, every agency and department is executing this mission seamlessly and, as a result, has yielded more than $170 billion in savings for the American people.”

The public nature of Trump and Musk’s spat last month and renewed fight this week is one of the more remarkable parts of their friends-turned-foes saga.

“These are not two men who quietly settle their differences in the background. They’re content to brawl it out in public,” said Conant. 

Musk wouldn’t be the first figure in Trump’s orbit elevated to a position of power “only to fire and then fight with,” Conant noted, pointing to Trump’s frayed relationship with his first-term Vice President Pence. 

“Anybody who’s paid attention to Trump over the last 10 years should not be surprised that he’s not backing down from a fight with Elon Musk.”