House Intelligence Committee Chairman Adam Schiff Adam Bennett SchiffChris Matthews ripped for complimenting Trump's 'true presidential behavior' on Ginsburg Trump casts doubt on Ginsburg statement, wonders if it was written by Schiff, Pelosi or Schumer Top Democrats call for DOJ watchdog to probe Barr over possible 2020 election influence MORE (D-Calif.) aggressively pushed back at calls for him to step down from President Trump Donald John TrumpOmar fires back at Trump over rally remarks: 'This is my country' Pelosi: Trump hurrying to fill SCOTUS seat so he can repeal ObamaCare Trump mocks Biden appearance, mask use ahead of first debate MORE and other Republicans, defending his past comments by lighting into the president and his family and campaign over its contacts with Russia.

Schiff at the opening of an Intelligence Committee hearing on Russia listed contacts between the Trump campaign and Russia that he described as being "not OK," signaling he'll fiercely defend himself from the calls to end his chairmanship.

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"My colleagues may think it is OK the president's son was offered dirt as part of an effort to help Trump," Schiff said in his statement, pausing at times for dramatic effect.

"You might think it is OK. I don’t," Schiff added, his voice rising as he went on.

Schiff spoke after one of the panel's senior members, in a striking display, called for him to step down.

Rep. Mike Conaway Kenneth (Mike) Michael ConawayBottom line House Republican introduces amendment to include farm aid in stopgap funding bill Live coverage: Democrats, Republicans seek to win PR battle in final House impeachment hearing MORE (R-Texas) said Schiff had lost confidence in the panel by promoting a "demonstrably false" narrative that has damaged the "integrity" of their panel.

The explosive moment came days after Attorney General William Barr Bill BarrProsecutor says no charges in Michigan toilet voting display Judge rules Snowden to give up millions from book, speeches The Hill's Morning Report - Sponsored by Facebook - Washington on edge amid SCOTUS vacancy MORE notified Congress that Mueller’s investigation did not find evidence to conclude that members of the Trump campaign coordinated or conspired with the Russian government to interfere in the 2016 election.

Trump and his GOP allies have seized on the revelation, claiming it exonerates Trump and attacking Schiff and other Democrats who described what they viewed as evidence of collusion over the course of Mueller’s 22-month probe.

The president earlier in a tweet on Thursday called for Schiff's resignation from Congress.

“Congressman Adam Schiff, who spent two years knowingly and unlawfully lying and leaking, should be forced to resign from Congress!” Trump said.

Schiff has said he plans to move forward with the panel’s sprawling investigation into Trump’s links to Russia, financial and otherwise, and allegations the president could be potentially “compromised” by the Kremlin or another foreign power.

Thursday’s hearing was another dramatic flashpoint for the House Intelligence Committee, a panel that has been well-known for its partisan divisions that exploded into plain sight during the committee’s first GOP-led probe into Russian election interference.

Republicans abruptly ended that probe in spring of last year, despite accusations from Democrats that they did so prematurely.

After Schiff claimed the committee gavel following the November midterm elections, he revived and expanded the committee’s investigation into Russian meddling.

Other Republican members of the committee interrupted Thursday’s hearing, which was supposed to be focused on expert testimony on Russian President Vladimir Putin, to voice their dissatisfaction with Schiff.

Rep. Michael Turner (R-Ohio) at one point likened Schiff to Joseph McCarthy, the Wisconsin senator who gained notoriety for promoting investigations into alleged communists in the U.S. government that made up part of the Red Scare in the 1940s and 1950s.

“Mr. Chairman, I am asking for your resignation today because I believe you are advancing Putin’s work. I believe the chair has abused his power and these processes and he’s misrepresenting the information we’ve received in classified sessions,” Turner said.

Democrats, meanwhile, came to Schiff’s defense, Democratic Rep. Mike Quigley Michael (Mike) Bruce QuigleyDemocrats introduce legislation to revise FDA requirements for LGBT blood donors Tucker Carlson sparks condemnation with comments about deadly Kenosha shooting Hillicon Valley: Three arrested in Twitter hack | Trump pushes to break up TikTok | House approves 0M for election security MORE (Ill.) calling the GOP attack an "ambush" and "cheap-shot” in remarks to The Hill during a brief break for votes.