White House Senior Advisor Stephen Miller said the Trump administration will take aggressive action against organizations he described [1] as fueling domestic terrorism in the wake of the assassination of Turning Point USA founder Charlie Kirk.
Kirk, 30, was shot and killed on Wednesday during a Turning Point USA “Prove Me Wrong” event at Utah Valley University in Orem, Utah.
His death has prompted widespread reactions across the political spectrum as federal and state investigators continue their work.
Appearing on Fox News Saturday, Miller pledged that the administration will move decisively to address what he called radical left-wing organizations that incite violence.
“Where the left calls people enemies of the republic, calls them fascists, says they’re Nazis, says they’re evil, says they have to be removed, and then prints their addresses, what do you think they’re trying to do? They are trying to inspire someone to murder them. That is their objective. That is their intent,” Miller said.
He added that reaction online to Kirk’s death demonstrated the problem.
“When you see online, Sean, as we’ve seen for the last few days, tape after tape after tape of federal workers, bureaucrats, staffers in the Pentagon, educators, professors, healthcare workers, nurses, celebrating the assassination of Charlie Kirk, these are radicalized people,” Miller told host Sean Hannity.
Miller said Kirk had personally expressed his concern about the threat of violence from left-wing groups.
“There is a domestic terrorism movement in this country. And let me tell you something, I’m not sure with anybody, but the last message that Charlie Kirk gave to me before he joined his creator in heaven was he said that we have to dismantle and take on the radical left organizations in this country that are fomenting violence. That was the last message that he sent me before that assassin stole him from all of us,” Miller said.
He continued, “We are going to do that under President Trump’s leadership. I don’t care how it could be a RICO charge, a conspiracy charge, conspiracy against the United States, insurrection, but we are going to do what it takes to dismantle the organizations and the entities that are fomenting riots, that are doxing, that are trying to inspire terrorism, that are committing acts of wanton violence.”
Miller closed with a direct warning to groups he accused of promoting violence.
“It has to stop. And my message is to all of the domestic terrorists in this country spreading this evil hate, you want us to live in fear? We will not live in fear, but you will live in exile.”
Stephen Miller is going nuclear…
“This is not fringe anymore. Tape, after tape. Federal workers, bureaucrats, educators, professors, nurses… people celebrating and cheering the assassination of Charlie Kirk! There is a domestic terrorist movement growing in this country.” pic.twitter.com/dZZN4UFwyK [2]
— Geiger Capital (@Geiger_Capital) September 13, 2025 [3]
Kirk’s assassination remains under investigation, with Tyler Robinson facing charges in connection with the attack. President Trump ordered flags flown at half-staff nationwide through September 14 in Kirk’s honor.
Memorial services are being planned in Arizona, where Kirk lived with his family, and in Illinois, where he was born and raised.