A video of former National Security Adviser Michael Flynn encouraging “lock her up” chants at the Republican National Convention in July resurfaced Tuesday following his resignation from the White House.

“We do not need a reckless president who believes she is above the law,” Flynn told the convention crowd in Cleveland. “Lock her up, that’s right,” he said, applauding chants from the crowd about then-Democratic presidential nominee 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.

“I have called on Hillary Clinton to drop out of the race because she — she put our nation’s security at extremely high risk with her careless use of a private email server," he said.

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“If I — a guy who knows this business — if I did a tenth of what she did, I would be in jail today,” he added.

Twitter users dug up the speech following his resignation Monday night. Flynn resigned after reports surfaced that he misled senior White House officials — including Vice President Mike Pence Michael (Mike) Richard PenceThe Hill's 12:30 Report: Ginsburg lies in repose Buttigieg stands in as Pence for Harris's debate practice Trump argues full Supreme Court needed to settle potential election disputes MORE — about his communications with Russia.

Flynn, exhorting chants of "lock her up" during the campaign: 'If I did a tenth of what she did, I would be in jail today.' https://t.co/OZFLlmfkBA — Margaret Sullivan (@Sulliview) February 14, 2017

RIP Michael Flynn, who led "lock her up" chants and then literally committed treason — Brian Gaar (@briangaar) February 14, 2017

Fondly remembering traitor Michael Flynn at the Republican convention leading the cheer from the stage: "LOCK HER UP." — Michael Moore (@MMFlint) February 14, 2017

Some critics of Flynn claim he broke the law by allegedly discussing Obama-era sanctions against Russia with the ambassador to Russia before Trump was sworn into office.

In a statement on his resignation, Flynn said the “fast pace of events” caused him to provide “incomplete information” to Vice President Pence and other senior officials about his communication with Russia.

The Department of Justice, then led by acting Attorney General Sally Yates, who was later fired, had reportedly warned the White House about risks Flynn posed to the administration, citing possible vulnerability to blackmail by Russia one month ago.