"The president's been so ill-served by this crowd," said Republican strategist Karl Rove during a Fox News appearance on Tuesday.
Flynn, pardoned by the president last month for lying to the FBI, has become a vocal proponent of the baseless pro-Trump conspiracy theories claiming electoral fraud.
"We are working every avenue to stop this coup & to stop our Republic from crumbing," Kelli Ward tweeted.
"I've been asked—on a scale of one to ten, who will be the next president of the United States, and I say Donald Trump. Ten," Flynn told the crowd at a "Stop the Steal" rally in Washington D.C.
"Sidney Powell's client are the people of the United States of America, and that's who she is fighting for right now," Trump's ex-national security adviser said.
Speculation that President Donald Trump will pardon himself before leaving office has mounted in recent weeks.
After his recent pardon by President Donald Trump, the retired general tweeted the inflammatory appeal on Twitter: "Freedom never kneels except for God."
When President Trump reviews the applications for executive clemency currently before him, he will be performing a critical constitutional duty: "To take care that the laws be faithfully executed."
"I am forever grateful to my legal team of warriors – a team that came into our lives during the most difficult time. Ms. Sidney Powell entered the Flynn family's lives like an Angel sent from heaven with the fighting spirit of David, ready to slay Goliath—and she did," wrote Michael Flynn.
Many Republicans praised Trump for granting Flynn clemency, while Democrats felt the pardon was an act of corruption.
The former national security adviser has been seen as a hero in the radical movement after swearing an oath of allegiance in July.
The president's decision to pardon Michael Flynn has caused a backlash, while there is also speculation of him controversially using such power on himself.
"It's important to talk about why the President pardoned Flynn," Chairman Jerry Nadler said Wednesday. "We saw it before, in the Roger Stone case—where President Trump granted clemency to protect an individual who might have implicated the President in criminal misconduct."
"Well done President Trump. Congratulations General Flynn and family. Happy Thanksgiving," Rivera wrote on Twitter on Wednesday.
"It is my Great Honor to announce that General Michael T. Flynn has been granted a Full Pardon," President Donald Trump tweeted on Wednesday.
"But this is who Donald Trump is," Schiff told CNN. "It's who he was on his way into the presidency, it will be exactly who he is on his last days of the presidency."
Flynn was widely seen as a likely candidate for a presidential pardon during Trump's lame-duck period.
The judge in the case has slowed down the Justice Department's attempts to dismiss charges against Flynn.
A D.C. court announced Thursday it will hear an appeal of the dismissal of Flynn's conviction for lying to prosecutors about his communication with a Russian diplomat during the 2016 presidential transition.
The former national security adviser used the phrase "where we go one, we go all," which is regularly said by QAnon followers.
The president will use the Michael Flynn ordeal, like the impeachment proceedings and Mueller investigation, as further "evidence" that he is indeed the victim of a vast conspiracy.
The federal appeals court ordered a lower court judge to immediately dismiss the criminal case against Michael Flynn.
An appeals court orders a lower court to dismiss charges against the former national security adviser, whose legal problems date back to 2017.
Trump's former national security adviser pleaded guilty twice to lying to federal prosecutors about his communications with Russia.
The three-judge panel suggested it might be inappropriate for them to force the hand of the trial court, at least for now, before the judge issued his ruling on the motion to dismiss.
Sidney Powell, a high-profile legal commentator often appearing on Fox News and member of Flynn's legal team, called Gleeson's claims "predictable and wrong."
Earlier this month, the Justice Department abruptly moved to drop the charges against Flynn.
Flynn suspects the current judge overseeing his case of wanting to "propose contempt and perjury charges against" him.