U.S. President Donald Trump speaks as he arrives in Arizona to attend a memorial service for slain conservative commentator Charlie Kirk at State Farm Stadium, at Luke Air Force Base, Arizona, U.S., September 21,

President Donald Trump and his supporters will pay tribute to conservative activist Charlie Kirk, whose assassination has intensified political tensions in the U.S. The memorial service Sunday in Arizona is expected to draw a large crowd to hear from Trump,

President Donald Trump told members of the press that Charlie Kirk was a "great man" on his way to the funeral in Arizona.

Conservative leaders, including top Trump administration officials such as Vice President JD Vance, spoke at the memorial service for Charlie Kirk, the conservative activist who was fatally shot at a Utah university.

Kirk's wife, Erika, also delivers a tearful speech in which she says she forgives her husband's alleged killer.

President Donald Trump and his supporters are set to pay tribute to conservative activist Charlie Kirk, whose assassination has intensified political tensions in the United States. The 63,400-seat State Farm Stadium in Arizona quickly filled up Sunday with people dressed in red,

Kirk, who was assassinated Sept. 10, reached millions through his conservative talk show and college campus debates.

Tens of thousands gathered at State Farm Stadium as Trump and his Cabinet members honored Charlie Kirk, describing his assassination as an attack on American democracy.