(CNN) House Speaker Nancy Pelosi accused President Donald Trump of staging the Situation Room meeting Wednesday so he could walk out, calling the move "unpresidential."

"Not only was the President unpresidential -- surprise, surprise -- yesterday in his behavior, I think the meeting was a setup, so he could walk out, but I'll say just that," Pelosi told reporters in her weekly briefing.

"I don't even know that the President wants the wall, I think he just wants to debate on the wall," she added.

Trump and Democrats remain stalemated over funding for Trump's southern border wall, as the government shutdown enters its 20th day. House Democrats, meanwhile, will continue to vote on spending bills next week to reopen shuttered parts of government -- but Trump has refused to sign them unless he his $5.7 billion wall request is fulfilled.

Asked by CNN's Manu Raju how the House would respond if Trump declared a national emergency, Pelosi said "let's see what he does."

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