"Today we're here to honour and remember a fearless warrior for liberty, beloved leader who galvanised the next generation like nobody I've ever seen before," Trump said in a Rose Garden event.
Kirk, founder of Turning Point USA, was shot on September 10 while speaking at an event at Utah Valley University, a killing that shocked America and reignited debates over political violence.
Kirk's assassination has become a rallying point for the Republican president, who has used it to energise his base and push for sweeping measures by the state against what he calls "radical left extremism."
Of Kirk's killing, Trump said: "He was assassinated in the prime of his life for boldly speaking the truth, for living his faith and relentless fighting for a better and stronger America."
The Trump administration has launched a broad crackdown on left-wing organisations, deploying multiple federal agencies, including the FBI, Department of Homeland Security, and IRS, to investigate and disrupt groups accused of funding and organising political violence.
At the same time, Trump has downplayed violence from right-wing groups, insisting political violence is primarily a problem rooted in the left. Experts say political violence is bipartisan, with historically more attacks inspired by right-wing ideology.
Officials have found no evidence that the suspect in Kirk's shooting acted in concert with any group.
The ceremony drew a mix of top Republican politicians, media personalities and Trump allies, including Vice President JD Vance, Secretary of State Marco Rubio and US Senators Ted Cruz, Mike Lee, and Rick Scott, as well as House of Representatives Speaker Mike Johnson.
A key figure in conservative politics, Kirk mobilised young voters for Trump's 2024 campaign. His influence was significant but divisive, marked by attacks on LGBTQ+ rights and civil rights. Supporters hailed him as a champion of free speech, while critics argue he helped mainstream extremist views.
Trump signed a proclamation on Tuesday declaring October 14, 2025 - on what would have been Kirk's 32nd birthday - as a National Day of Remembrance for Charlie Kirk.
with AP
