Trump administration says it will target far left groups for Kirk's assassination. Prosecutors made no such link.

Experts told NBC News that the Trump administration appears to be using Charlie Kirk’s assassination as an excuse to crack down on left-wing groups.

In the aftermath of Charlie Kirk’s assassination, President Donald Trump and his allies have threatened to bring the weight of the federal government against what they refer to as the “radical left.”

“It is a vast domestic terror movement,” Stephen Miller, Trump’s top policy adviser, said Monday.

“With God as my witness, we are going to use every resource we have at the Department of Justice, Homeland Security and throughout this government to identify, disrupt, dismantle and destroy these networks and make America safe again for the American people,” he added. “It will happen, and we will do it in Charlie’s name.”

White House Deputy Chief of Staff Stephen Miller during a television interview outside the West Wing of the White House on Aug. 29.Andrew Cabarello-Reynolds / AFP - Getty Images fileBut the suggestion that a secret network of violent left-wing extremists was behind the killing stands in contrast to the evidence that law enforcement officials presented on Tuesday in Utah, where Kirk was fatally shot. There was no indication presented Tuesday that the suspect, Tyler Robinson, was a member of a group or that he fell under the sway of a particular leader. The investigation is ongoing.

Utah County Attorney Jeffrey Gray laid out seven counts — including aggravated murder — against Robinson, and detailed the evidence against him in a 10-page court filing. In the hours after the shooting, Robinson was asked twice, by his father and his roommate, why he shot Kirk. He responded that Kirk “spreads too much hate” and “I had enough of his hatred,” the documents show.