Trump, who has repeatedly weaponized the Justice Department against his political opponents, erupted in response to the 90-second video, accusing the Democratic lawmakers behind it of "seditious behavior, punishable by death."
The lawmakers who appeared in the video were Sens. Mark Kelly of Arizona and Elissa Slotkin of Michigan as well as Reps. Jason Crow of Colorado, Chrissy Houlahan and Chris Deluzio of Pennsylvania, and Maggie Goodlander of New Hampshire. The Democrats learned they were under investigation last month when they received inquiries from Pirro's office.
Lawmakers and legal observers said it was deeply alarming that the DOJ even tried to secure the indictment.
"What an ugly assault on the First Amendment and on Congress," said legal scholar Ryan Goodman. "Thankfully, thwarted."
Kelly, a retired Navy captain who is facing Pentagon attempts to censure him and cut his military benefits, said the effort to indict him and his fellow Democratic lawmakers was "an outrageous abuse of power by Donald Trump and his lackies."
"It wasn’t enough for Pete Hegseth to censure me and threaten to demote me, now it appears they tried to have me charged with a crime—all because of something I said that they didn’t like," Kelly wrote on social media. "That’s not the way things work in America."
Slotkin, a former CIA officer who organized the November video, said Pirro pursued the indictment "at the direction of President Trump, who said repeatedly that I should be investigated, arrested, and hanged for sedition."
"Today, it was a grand jury of anonymous American citizens who upheld the rule of law and determined this case should not proceed. Hopefully, this ends this politicized investigation for good," the senator said. "But today wasn’t just an embarrassing day for the administration. It was another sad day for our country."
"Because whether or not Pirro succeeded is not the point. It’s that President Trump continues to weaponize our justice system against his perceived enemies," Slotkin added. "No matter what President Trump and Pirro continue to do with this case, tonight we can score one for the Constitution, our freedom of speech, and the rule of law."