Manchin said in his statement he supports increasing IRS enforcement and ending the carried interest tax break that is used by private equity fund managers to cut their tax bills.

He said he backs a 15% domestic corporate minimum tax, which Biden has previously proposed, but that it should only apply the largest US companies that are worth at least $1 billion. Manchin did not make any reference to the 15% global minimum tax that Treasury Secretary Janet Yellen helped broker with nearly 140 countries last year.

Manchin opposed expanding the state and local tax, or SALT, deduction that several House Democrats from New York and New Jersey have said is a priority. The deal also excludes a surtax on millionaires and tax on stock buybacks that Schumer was pushing for earlier in the month.

The agreement would provide $369 billion for “energy and climate change” according to a one-page summary. On the traditional-energy side, Manchin said Biden, Schumer and House Speaker Nancy Pelosi had agreed to advance permitting reforms that could benefit fossil fuel producers. On the other, the deal would include electric vehicle tax credits sought by automakers like Tesla and Toyota, including a credit for used vehicles for the first time.

Subsidies for Obamacare premiums would also be extended for three years.

Before the Senate can vote, the parliamentarian must determine if all the provisions comply with Senate budget rules to allow Democrats to pass the bill with just 50 votes, bypassing a Republican filibuster by using what’s known as the budget reconciliation process.

Every member of the Democratic caucus would need to vote for the deal for it to pass by a simple majority in the 50-50 Senate, and that has made Manchin, who represents a solidly Republican state, a linchpin in negotiations.

Another key Democratic vote is Senator Kyrsten Sinema of Arizona. She has in the past declined to support ending the carried-interest tax break.

Asked whether she would vote for the agreement, a spokeswoman for the Arizona lawmaker said that she has not made a decision yet.

“Senator Sinema will need to review the text,” said her press secretary, Hannah Hurley. “We don’t have comment at this time.”