The White House is under mounting pressure to make the controversial Trans-Pacific Partnership (TPP) deal a bipartisan one and avoid a defeat by the GOP in the Senate.

Key Democrats are calling on President Barack Obama to use the leverage of his bully pulpit to pressure GOP senators to vote to pass the TPP.

The Senate has been debating the bill since late October and is set to vote Thursday on the package.

The deal would open up nearly 40 percent of the U.S. economy to Chinese imports and force the U,S.

and Canada to negotiate on trade issues that include labor standards and intellectual property protections.

The pushback against the deal comes amid a wave of public backlash against it, with several Democratic senators calling for an end to the process.

Senate Minority Leader Chuck Schumer of New York, the leader of the Democratic caucus, has said he would oppose any deal that would put a trade deal at odds with the values of the American people, including free trade.

Schumer is one of the leading voices in the Democratic Party who have called for an open debate on the deal, including a public vote on the bill.

“If the president is going to continue to ignore the American public and the American Congress, then he’s going to be in a big mess in the next two years,” Schumer said.

In a statement, the White House said that the administration remains committed to the TPP and will continue to engage with Congress to find ways to move forward on a bipartisan basis.

“We remain committed to bringing the TPP to a vote, and we’re also committed to working with Congress and other stakeholders to find common ground on a number of key issues,” the White house said.