Past presidents have tried to console the nation following acts of violence, but political observers say it's a less comfortable role for Trump, who vowed to go after the "radical left."
News of the conservative activist's death landed particularly hard on Vance, who changed his plans Thursday to fly to Utah and return Kirk's remains to Arizona on Air Force Two.
Republicans and Democrats, including Reps. Alexandria Ocasio-Cortez and Nancy Mace, are canceling upcoming events and taking other security precautions.
The FBI has released images of a person of interest they are seeking in connection to the assassination of Charlie Kirk. NBC News' Steve Patterson reports on the details officials have shared and the ongoing manhunt.
Seeing their compatriots shackled at the wrists and ankles during the raid at the Hyundai facility last week jolted a population that typically views the U.S. very favorably.