US Treasury’s Top Crypto Adviser Departs as Clarity Act Stalls in Senate

Tyler Williams, the top digital-asset adviser to US Treasury Secretary Scott Bessent, has left the Treasury Department, fueling concerns about a policy vacuum as Congress delays action on the Clarity Act, a crypto market-structure bill.

Williams left the Treasury on July 31, crypto news outlet Cryptonews reported on August 4. No successor has been named, and he is expected to return to the private sector.

Bessent had previously credited Williams with playing a key role in advancing the administration’s effort to make the US the “crypto capital of the world.”

Williams joined the Treasury in February 2025 as an adviser to the secretary overseeing cryptocurrency and blockchain policy. He previously served as head of global policy at Galaxy Digital and helped draft a White House working group report on digital-asset markets.

The Senate is set to begin recess on August 10, but a floor vote on the Clarity Act has yet to be scheduled. Republicans hold 53 seats in the chamber, but 60 votes are needed to end debate and move to a final vote, making Democratic support essential.

Some Democratic senators oppose the bill, arguing it lacks adequate ethics rules to prevent conflicts of interest between government officials and crypto businesses. Senator Elizabeth Warren has also continued to criticize the legislation.

Market expectations have also weakened. Galaxy Research cut its estimate for the bill’s chances of passing this year to 30% from 50%, while odds on prediction market Polymarket have fallen to about 30% from above 80% earlier this year.