Live coverage above: NewsNation's Leland Vittert at the Charlie Kirk memorial service

(NEXSTAR) — Thousands of supporters are gathering in Arizona to pay tribute to Charlie Kirk, the conservative activist who was assassinated in Utah earlier this month.

You can watch live coverage with NewsNation's Leland Vittert in the video player above.

Kirk, 31, was fatally shot while speaking at Utah Valley University in Orem, Utah, on Sept. 10. A 22-year-old Utah resident is now facing charges in his death.

Sunday's memorial service is being held at State Farm Stadium in Glendale, Arizona, just outside of Phoenix, where Turning Point USA is based. Doors opened at 11 a.m. ET, but crowds were already gathering outside the stadium Saturday night.

In addition to President Donald Trump and Vice Presi

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