Alan Dershowitz Alan Morton DershowitzDershowitz suing CNN for 0 million in defamation suit Bannon and Maxwell cases display DOJ press strategy chutzpah Ghislaine Maxwell attorneys ask for delay to unseal court documents due to 'critical new information' MORE, an associate of President Trump Donald John TrumpHR McMaster says president's policy to withdraw troops from Afghanistan is 'unwise' Cast of 'Parks and Rec' reunite for virtual town hall to address Wisconsin voters Biden says Trump should step down over coronavirus response MORE who served on his impeachment defense team, said Democrats need new leadership in Congress and that Speaker Nancy Pelosi Nancy PelosiMcConnell focuses on confirming judicial nominees with COVID-19 talks stalled Overnight Defense: Top admiral says 'no condition' where US should conduct nuclear test 'at this time' | Intelligence chief says Congress will get some in-person election security briefings Pelosi must go — the House is in dire need of new leadership MORE (D-Calif.) and Senate Minority Leader Charles Schumer Chuck SchumerMcConnell accuses Democrats of sowing division by 'downplaying progress' on election security Warren, Schumer introduce plan for next president to cancel ,000 in student debt Schumer lashes out at Trump over 'blue states' remark: 'What a disgrace' MORE (D-N.Y.) “have to go.”

“I think they need new leadership. I think Schumer and Pelosi have to go. Schumer because of his history of lying. You know, Pelosi actually called for me to be disbarred ... because I had persuaded some senators” in the impeachment trial, Dershowitz said on John Catsimatidis’s radio show Sunday.

“I think the Dems need new leaders if they have any chance of returning to power,” he added.

Dershowitz’s comments come days after the conclusion of the Senate’s acrimonious impeachment trial.

The House voted in December largely along party lines to impeach Trump on allegations that he abused the power of his office by pressing Ukraine to investigate his political opponents and obstructed Congress by hindering subsequent probes about his dealings with the country and its officials.

The Senate acquitted Trump this week, with only Sen. Mitt Romney Willard (Mitt) Mitt RomneyGOP-led panel to hear from former official who said Burisma was not a factor in US policy Joe Biden's dangerous view of 'normalcy' The electoral reality that the media ignores MORE (R-Utah) breaking party lines to vote to convict on abuse of power.

Dershowitz, a Harvard Law professor and a contributor to The Hill, said this was a good week for the country and its laws. However, he said he believes that the impeachment trial reflects poorly on lawmakers in the lower chamber of Congress.

“This week was a good week for United States Constitution. The Constitution won,” Dershowitz said. “I think the House of Representatives disgraced itself by its partisan vote. And I think the Senate did the right thing by protecting the Constitution. I’m proud of America. The system works.”

Dershowitz raised eyebrows and drew fierce Democratic rebukes after he gave his defense of the president during the trial.

“If a president does something which he believes will help him get elected in the public interest, that cannot be the kind of quid pro quo that results in impeachment,” he said on the Senate floor.

Schumer hit Dershowitz after his remarks, saying that if the lawyer believed his argument to defend President Trump, then it was questionable whether he believed believed former President Nixon committed an impeachable offense.

"By Professor Dershowitz's logic, President Nixon did nothing wrong in Watergate," Schumer said, adding that the logic was "a load of nonsense."

Dershowitz later backtracked, saying the media was distorting his remarks, and he dismissed on Sunday Schumer’s criticism of his argument.

“Schumer just decided to lie about it. And it’s shocking to me that somebody of his standing ... would stoop so low as to just make up a story,” Dershowitz fired back.

John Catsimatidis is an investor in The Hill.