House Judiciary Committee Chairman Jerrold Nadler Jerrold (Jerry) Lewis NadlerDemocrats shoot down talk of expanding Supreme Court Schumer: 'Nothing is off the table' if GOP moves forward with Ginsburg replacement Top Democrats call for DOJ watchdog to probe Barr over possible 2020 election influence MORE (D-N.Y.) said Sunday that President Trump Donald John TrumpBiden says voters should choose who nominates Supreme Court justice Trump, Biden will not shake hands at first debate due to COVID-19 Pelosi: Trump Supreme Court pick 'threatens' Affordable Care Act MORE would push to make the 2020 election unfair if he is acquitted of articles of impeachment in Congress.

"The president, based on his past performance, he will do everything he can to make it not a fair election," Nadler said on NBC's "Meet the Press."

"And that is part of what gives us the urgency to proceed with this impeachment," he added.

House members and Senators will have to decide "in the face of an abundance of uncontested evidence" whether "the president poses a threat to our election," Nadler said.

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"Are they going to be patriots, or are they going to be partisans?" he asked.

"This is a matter of urgency to deal with because we have to make sure the next election is conducted with integrity and without foreign interference," he added.

The Judiciary Committee will hold an impeachment hearing Monday.

Nadler did not give a definitive time frame for when the House will vote on articles of impeachment.

Spokespeople for the White House and Trump campaign were not immediately available to respond to Nadler's comments.