Elizabeth Warren hasn’t lost a Senate race. Is a pro-crypto Republican lawyer about to change that?

John Deaton, 56, a Massachusetts attorney and digital assets advocate, is seriously considering running this year as a Republican, the Boston Globe reported. Deaton is taking a “serious look” at the race and will decide in the coming days, Jim Conroy, a key advisor of Republican Gov. Charlie Baker’s political operation who’s been consulting with Deaton, told the Globe.

Deaton didn’t immediately respond to Fortune’s request for comment. If he enters the race, he’ll be the first significant Republican challenger for Warren since she announced she was running for reelection last year. 

Warren, elected as the state’s first female senator in 2012, tweeted last month: “It’s time for crypto to follow the same anti-money laundering rules as everyone else. I’ve got a bill to make it happen.”

The @SECgov is wrong on the law and wrong on the policy with respect to the Bitcoin ETF decision.

If the SEC is going to let crypto burrow even deeper into our financial system, then it’s more urgent than ever that crypto follow basic anti-money laundering rules.

— Elizabeth Warren (@SenWarren) January 11, 2024

That bill, the Digital Asset Anti-Money Laundering Act, which was introduced to the Senate in July, would require the Financial Crimes Enforcement Network to issue guidance on digital assets. It would “close loopholes in anti-money laundering rules, cutting off drug suppliers and cartels from using crypto to facilitate their illegal business,” according to Warren’s website.

Deaton often has been critical of Warren on X, citing concerns that the senator has failed to engage in oversight of the Securities and Exchange Commission and Chairman Gary Gensler. “She literally said that she didn’t want to place Gensler in a tough spot. Are you f’ing kidding me?” he