Watch Donald Trump's Heated Meeting With Nancy Pelosi, Chuck Schumer: 'I Am Proud to Shut Down the Government'

President Donald Trump welcomed reporters into the Oval Office as he quarreled with top Democrats Nancy Pelosi and Chuck Schumer about a possible government shutdown over the president's proposed border wall.

"I am proud to shut down the government for border security, Chuck," Trump told Schumer and Pelosi during a contentious meeting at the White House on Tuesday. "Because the people of this country don't want criminals and people that have lots of problems and drugs pouring into our country, so I will take the mantle.

"I will be the one to shut it down. I'm not going to blame you for it," the president said during a heated exchange.

Pelosi and Schumer were in the Oval Office to discuss potential solutions to avoid a partial government shutdown at the end of the month. Federal funding for some agencies expires on December 21.

But Trump was unwilling to compromise on the funding for his long-proposed border wall, a campaign promise that has stalled nearly two years into his presidency, with no construction on the wall even started. Even though Democrats are offering $1.3 billion for border fencing and barriers, Trump has repeatedly threatened a shutdown if his $5 billion request to fund the wall is not met.

"You will not win," Pelosi told Trump, pointing out that even though Republicans control both houses of Congress until December 31, the president would still need Democratic support in the Senate to get the 60 votes needed to advance the spending bill.

donald trump, nancy pelosi, chuck schumer
President Donald Trump talks about border security with Senate Minority Leader Chuck Schumer and House Minority Leader Nancy Pelosi as Vice President Mike Pence sits nearby in the Oval Office on December 11. In what Schumer called a "temper tantrum," Trump threatened to shut down the government if he doesn't receive funding for the border wall. Mark Wilson/Getty Images

Throughout the meeting, Pelosi repeatedly requested that the conversation happen behind closed doors, telling the president: "I don't think you should have a debate in front of the press."

Pelosi, who is likely to become the next House speaker as Democrats take control of the chamber in January, then slammed the president for not having an "evidence-based" conversation, and pointed out that many of his statements during the meeting were "not factual."

"This is about the security of our country. We've taken an oath to protect and defend and we don't want to have that mischaracterized by anyone," she said. "So let us have a conversation where we don't have to contradict, in public, the statistics that you've put forth but instead have a conversation about what will really work."

Hours before the meeting began on Tuesday, the president went on Twitter to air some of his grievances with Democrats over border security. In the social media tirade, he claimed that for "strictly political reasons" Democrats "do NOT want Border Security" and that they will "fight it at all cost.

"People do not yet realize how much of the Wall, including really effective renovation, has already been built. If the Democrats do not give us the votes to secure our Country, the Military will build the remaining sections of the Wall. They know how important it is!" Trump added.

There is no evidence that the military would build the wall, or where the money for it would come from if Congress does not provide the funding.

Watch Donald Trump's Heated Meeting With Nancy Pelosi, Chuck Schumer: 'I Am Proud to Shut Down the Government' | U.S.