Former House Speaker Newt Gingrich called House Democratsimpeachment push against President Trump a fundamental violation of American law.

“Schiff is an embarrassingly dishonest person. Pelosi has become an embarrassingly dishonest person,” Gingrich told “Fox & Friends.”

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A motion to censure House Intelligence Committee Chairman Adam Schiff, D-Calif., for his “parody” reading of the phone call transcript of President Trump's July 25 phone call with Ukraine July 25 phone call with Ukrainian leader Volodymyr Zelensky during a hearing is gaining steam with House Republicans. Fox News has learned 135 lawmakers have now signed on as co-sponsors.

The resolution to censure Schiff -- who has become a favorite target of Republicans for his role in the Trump impeachment inquiry -- was first introduced late last month by Rep. Andy Biggs, the Arizona Republican who chairs the conservative House Freedom Caucus, and has the support of House Minority Leader Kevin McCarthy, R-Calif., House Minority Whip Steve Scalise, R-La., and House Republican Conference Chair Liz Cheney, R-Wyo., among other ranking Republicans in the lower chamber of Congress.

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Democrats have the majority and control the floor in the House, but Republicans could still attempt to force a vote on the matter.

Gingrich defended his role in the impeachment of former President Bill Clinton after Hillary Clinton called it a “partisan effort to take down a president” in a recent interview. Gingrich said that Bill Clinton was found guilty on 11 counts, including lying, obstruction of justice and perjury.

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“The Democrats in the House are desperately trying to manufacture something. They wake up every morning saying I know Trump did something terrible, I wonder what it was,” Gingrich said.

“They have set up a rigged game that violates every core principle in American justice, violates the Constitution’s guarantee of due process, and I think that the American people are only going to get very sick of this.”

Fox News’ Andrew O’Reilly contributed to this report.