US President Donald Trump has issued a damning address from the Oval Office after the assassination of Charlie Kirk, saying the radical left is responsible for the terrorism seen in the United States.

Kirk, 31, was a close ally of Mr Trump, playing an instrumental role in garnering support with younger Americans.

He founded Turning Point USA, a non-profit organisation advocating conservative politics through events at schools and universities, and hosted the Turning Point USA podcast.

Remembering Kirk, Mr Trump said the MAGA heavy-weight was a “martyr for truth”.

“I am filled with grief and anger at the heinous assassination of Charlie Kirk on a college campus in Utah,” Mr Trump said.

“Charlie inspired millions and tonight all who knew him and loved him are united in shock and horror.

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