Sen. Bill Hagerty is spearheading legislation to regulate stablecoin, a cryptocurrency linked to fiat currencies like the dollar, but he has hit a snag.

The clash has emerged despite growing bipartisan interest in advancing crypto regulation. The stablecoin bill, spearheaded by Sen. Bill Hagerty (R-Tenn.), was passed out of the Senate Banking Committee in March with backing from five Democrats. However, momentum appears to have stalled amid deepening political divisions.

Senate leadership plans to tee up a vote on legislation creating a framework for payment stablecoins this week, even as a contingent of crypto-friendly Senate Democrats pull their support for the bill.