President Donald Trump and other prominent American political figures are heading to Arizona to speak at a memorial for Charlie Kirk, the 31-year-old conservative activist who was killed two weeks ago.
The event, organised by Turning Point USA (TPUSA), is on Sunday at State Farm Stadium in Glendale and could be attended by more than 100,000 people.
Heightened security is expected, including TSA-level screening, according to TPUSA.
Kirk, who co-founded Turning Point USA when he was 18, was shot at a speaking event on a Utah university campus on 10 September, reigniting concerns about political violence in the US.
A polarising figure, differing perspectives about his legacy and possible motives for the shooting have exacerbated deep divisions in the US.
In addition to Trump, those expected to speak at the service include Kirk's widow, Erika, who took over his role as TPUSA CEO; Vice President JD Vance; the president's eldest son, Donald Trump Jr.; right-wing political commentator Tucker Carlson; homeland security adviser and White House deputy chief of staff for policy Stephen Miller.
Doors open at 08:00 local time (16:00 BST), with the official program due to start at 11:00 (19:00 BST). The dress code is Sunday best - red, white or blue.
The stadium can hold just over 63,000 people, with the TPUSA website stating entry on Sunday will be on a first come, first served basis. A nearby 20,000 capacity stadium has been allocated as an overflow area.
It will be live-streamed on Charlie Kirk's Rumble account, TPUSA said.
A senior Department of Homeland Security official told CBS that the memorial service has the same security designation as high-profile events such as the Super Bowl.
However, tensions are high following Kirk's killing, with much still unknown about the suspected shooter's motives. The incident has sparked a debate over political violence and civil liberties in the U.S.
