Former Utah congressman and Fox News contributor Jason Chaffetz slammed House Speaker Nancy Pelosi for urging President Trump to delay his planned State of the Union address amid the partial government shutdown.

Pelosi (D-Calif) on Wednesday suggested Trump postpone the televised address -- scheduled for Jan. 29 -- until the shutdown ends, or submit the address in writing.

“Sadly, given the security concerns and unless the government re-opens this week, I suggest that we work together to determine another suitable date after government has re-opened for this address or for you to consider delivering your State of the Union address in writing to Congress on January 29," Pelosi wrote in a letter to Trump.

On a special live audience edition of "Fox & Friends" Thursday, Chaffetz said when he heard Pelosi speak about delaying the State of the Union, his first thought was, "You liar!"

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He took issue with Pelosi citing "security concerns," pointing out that the Capitol Police and Secret Service are fully funded despite the shutdown.

"It was just two weeks ago Nancy Pelosi went to the floor and said, 'We're going to be transparent, we're gonna be a town hall, we're gonna allow debate.' She wants to shut down the debate because she knows the president will win this argument," Chaffetz said.

He said he's proud of Trump for "forcing the issue" and demanding funding for border security, including his long-promised wall.

"We have to find a resolution to this," Chaffetz said. "The president's going to win this fight, though, because it's the right fight. It's what the border security experts want, it's for national security, it's protecting our nation, and Democrats have a huge problem on their hands."

Watch the segment above.

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