MSNBC host Nicolle Wallace on Tuesday ripped former national security adviser Michael Flynn for once encouraging a "lock her up" chant about former Secretary of State Hillary Clinton Hillary Diane Rodham ClintonDemocratic groups using Bloomberg money to launch M in Spanish language ads in Florida The Hill's Campaign Report: Presidential polls tighten weeks out from Election Day More than 50 Latino faith leaders endorse Biden MORE.

Wallace shared footage of Flynn presiding over the chant at the Republican National Convention only hours after a federal judge delayed his sentencing for lying to FBI agents.

The footage from 2016 shows Flynn speaking on stage and saying "damn right" as a crowd repeatedly chants "lock her up."

"Ouch, that’s the kind of irony that hits you like a ton of bricks," Wallace said on "Deadline: White House."

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"Two and a half years ago at the Republican National Convention Michael Flynn said, 'Damn right, Hillary Clinton should be put in prison.'"

"Here we are in December 2018 talking about Flynn’s day in court, where a judge at least appeared ready to send him to prison. That irony wasn't lost on the crowd waiting for him outside the courthouse," she added, before showing footage of people chanting "lock him up" as Flynn exited court.

Chants of "USA" could also be heard as Flynn was led to a car outside the courthouse.

Flynn was in court on Tuesday for one count of making false statements to the FBI about his discussions with then-Russian Ambassador Sergey Kislyak. Flynn pleaded guilty to the charge in 2017 as part of a deal to cooperate in 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 investigation into Russia's election interference.

During the hearing, U.S. District Judge Emmet Sullivan denounced Flynn for committing a “serious offense" by lying.

Sullivan later asked Flynn and his legal team if they would like to delay his sentencing until after his cooperation with Mueller is complete. Flynn's attorneys accepted the offer.