WASHINGTON — The controversy over President Donald Trump’s crypto profits is threatening to derail a quick deal on bipartisan stablecoin legislation backed by the crypto industry and the White House.

Sen. Elizabeth Warren of Massachusetts, the top Democrat on the Senate Banking Committee, is leading the effort to use the stablecoin bill to bar a sitting U.S. president from profiting off crypto ventures, which have already earned Trump and his family millions.

Democrats in talks with Republicans have pushed to include legislation barring the president from profiting off his memecoin and other cryptocurrencies, said a Senate Democratic aide familiar with the discussions.

Democratic leadership, meanwhile, also wants changes to language dealing with Tether, the leading stablecoin, as well as language addressing Trump, said another person familiar with the discussions.

Stablecoins — which are crypto tokens typically designed to be pegged to the value of the U.S. dollar or another traditional currency — are a lucrative business because issuers are able to invest reserves backing stablecoins in short-term U.S. Treasuries or similar products and keep the yields.

Senate Minority Leader Chuck Schumer is backing a separate bill to ban Trump from profiting off his crypto projects.

But Warren’s push to include it on the stablecoin bill puts Schumer in a familiar bind of deciding between a legislative priority with support from both parties and pressure from his left to resist Trump.

“On stablecoins, Democrats and Republicans are talking to each other,” he said.

Republicans need at least seven Democrats to back the stablecoin legislation, so Schumer has some leverage to force at least a floor vote on including the Trump-related language in the larger bill.

The creators of Trump’s memecoin launched a contest that offered its top holders the opportunity to win a private dinner with the president and a possible VIP tour. The move, which initially boosted sales of the token, provoked sharp condemnation from Democrats.