Jason Chaffetz said that Congress should "show some guts" and demand the Justice Department provide access to documents related to the FBI's alleged use of an informant in President Trump's 2016 campaign.

The former Utah congressman and Fox News contributor said that House and Senate leaders should hold Deputy Attorney General Rod Rosenstein in contempt until he provides the documents.

In a letter sent Friday to Rosenstein, House Intelligence Committee Chairman Devin Nunes (R-Calif.) gave the Justice Department until Tuesday to provide the records, saying that failure to do so is "obstruction of a lawful congressional investigation."

"Until Congress gets a backbone in the House, the Senate ... until they actually stand unified, it isn't going to change," Chaffetz said on "Outnumbered Overtime."

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Chaffetz also called out Democrats for not demanding the release of the documents, saying there isn't an excuse for them to "stand on the sidelines and just see what happens" just because the alleged spying occurred while Barack Obama was in office.

"When it comes to the purity of them wanting to see Trump-related documents, I guarantee they're going to be pounding their fists, they're going to be yelling and screaming," he said.

President Trump has insisted that the FBI placed a "spy" in his campaign, calling it the "one of the biggest political scandals in U.S. history."

His claims, however, have been roundly dismissed by former intelligence officials and even some current Republicans, like Paul Ryan and Trey Gowdy

Chaffetz also called Rosenstein the "biggest obstacle" when it comes to providing transparency within the U.S. government.

"The deep state just does not want it," he said.

Watch more above.

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