President Donald Trump’s Oval Office address on the assassination of conservative activist Charlie Kirk was the subject of viral claims that the video had been altered with artificial intelligence, a contention the White House rejected and social media users and video editors characterized as a routine editing artifact.

A clip posted on X by Andy Signore, host of the YouTube channel Popcorned Planet, showed a slow-motion segment of the speech and said Mr. Trump’s pinky “disappears” in the cut, suggesting the use of AI. Signore posted: “Um that Trump speech was AI... His pinky DISSAPPEARS!” and warned that AI could be used to edit footage to political ends, comparing it to the president’s lawsuit against CBS over a past interview edit.

The White House dismissed the allegation. “There was no AI used in this video,” a White House spokesperson told the Daily Mail. “President Trump recorded a heartfelt message following the tragic assassination of his dear friend, Charlie Kirk. Anyone sharing deranged conspiracy theories should be ashamed of themselves.”

Users and video editors responding to the clip said the effect is consistent with a conventional editing technique, not synthetic imagery. One X user described it as “very obviously a Morph Cut in Premiere Pro,” and others said the footage appeared to be two takes joined together, causing a brief blur that made the finger seem to vanish.

Trump delivered the televised remarks after initially announcing Kirk’s death on his social media platform, Truth Social. In the address, the president called the killing a “heinous assassination” and praised Kirk as a patriot who “devoted his life to the cause of open debate.” Trump said Kirk was a man of faith and urged Americans and the media to confront rhetoric that demonizes political opponents, saying persistent demonization can lead to violence.

Charlie Kirk, 31, a co-founder of Turning Point USA, was shot once in the neck Wednesday afternoon while speaking to students at Utah Valley University. He is survived by his wife, Erika Frantzve, and their two young children. The killing prompted a manhunt by local authorities and the FBI.

The FBI on Thursday released images of a person of interest in the case — a slim-built individual dressed in black, wearing a snapback hat and sunglasses in the photographs — and offered a $100,000 reward for information leading to the identification and arrest of anyone responsible for Kirk’s death. Authorities asked anyone with information to call 1-800-CALL-FBI.

The dispute over the video’s authenticity highlights broader anxieties about AI and media manipulation in U.S. political discourse. Experts and professional editors have cautioned that routine camera movement, focus shifts or standard editing transitions can produce optical illusions that may be misinterpreted as deepfake manipulation. Social media posts that amplify such impressions can spread quickly, even as technical explanations remain straightforward.

Investigators continue to pursue leads in Kirk’s killing, and the White House said the president’s address was a sincere response to the tragedy. The FBI and local law enforcement have appealed to the public for tips as the investigation proceeds.