Rep. Hank Johnson Henry (Hank) C. JohnsonFive takeaways as panel grills tech CEOs Lawmakers, public bid farewell to John Lewis Johnson presses Barr on reducing Roger Stone's recommended sentence MORE (D-Ga.) compared former Trump campaign aide Corey Lewandowski Corey R. LewandowskiTrump faces tricky choice on Supreme Court pick How Trump can win reelection: Focus on Democrats, not himself Trump Jr. distances from Bannon group, says he attended 'single' event MORE to "a fish being cleaned with a spoon" during Lewandowski's Tuesday testimony before the House Judiciary Committee.

“Mr. Lewandowski, you are about like a fish being cleaned with a spoon, it’s very hard to get an answer out of you,” Johnson said at the start of his questioning of the former campaign aide.

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He then went on to ask Lewandowski about a 2017 Oval Office meeting with President Trump Donald John TrumpFederal prosecutor speaks out, says Barr 'has brought shame' on Justice Dept. Former Pence aide: White House staffers discussed Trump refusing to leave office Progressive group buys domain name of Trump's No. 1 Supreme Court pick MORE in which Trump asked Lewandowski to convince then-Attorney General Jeff Sessions Jefferson (Jeff) Beauregard SessionsRoy Moore sues Alabama over COVID-19 restrictions GOP set to release controversial Biden report Trump's policies on refugees are as simple as ABCs MORE to say that the president was being treated unfairly due to former special counsel Robert Mueller Robert (Bob) MuellerCNN's Toobin warns McCabe is in 'perilous condition' with emboldened Trump CNN anchor rips Trump over Stone while evoking Clinton-Lynch tarmac meeting The Hill's 12:30 Report: New Hampshire fallout MORE's probe.

The hearing Tuesday became chaotic during 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's (D-N.Y.) attempts to question Lewandowski.

The former aide, who is still close to the White House, first insisted that he be given a copy of the Mueller report to follow along with excerpts read by Democrats. He also said at one point that he did not remember an Oval Office meeting with Trump.

Partisan debate also broke out as to whether the clock should be stopped during Lewandowski's pauses in answering questions.

Lewandowski's appearance comes as Democrats investigate possible obstruction of justice by Trump.