X owner, Tesla chief, and SpaceX executive Elon Musk could pick up another role should Donald Trump win in November: leading a government efficiency task force.

The task force would have the authority to audit federal spending and regulations, and came at the recommendation of Musk himself, Trump said in remarks Thursday to the Economic Club of New York.

“At the suggestion of Elon Musk, who has given me his complete and total endorsement—that’s nice, a smart guy, he knows what he’s doing, he knows what he’s doing! It’s very much appreciated—I will create a government efficiency commission tasked with conducting a complete financial and performance audit of the entire federal government and making recommendations for drastic reforms,” Trump told the subdued crowd of business executives. “We need to do it. Can’t go on the way we are now.”

According to Trump, the commission would develop a plan to “totally eliminate fraud and improper payments within six months,” aiming to slash trillions of dollars from the federal budget while promising not to alter government services. He did not identify any specific programs that could be slashed to save the cash, making budget experts from both parties very wary of the ambitious promise, according to The Washington Post’s White House economics reporter Jeff Stein. The commission as a whole represents an apparent dig at spending under the Biden-Harris administration.

Musk and Trump have grown closer since the tech billionaire formally endorsed the Republican presidential nominee after an assassination attempt in July. That same month, Musk pledged to give $45 million a month to a pro-Trump super PAC (a promise he later walked back.) The pair also shared a long, sprawling talk on X in August (the details of which may have violated FEC regulations.)