Colorado’s Supreme Court has ruled that Donald Trump cannot run for president next year in the state, citing a constitutional insurrection clause.

The court ruled 4-3 that Mr Trump was not an eligible candidate because he had engaged in an insurrection over the US Capitol riot nearly three years ago.

It does not however stop Mr Trump running in the other states and his campaign says it will appeal to the US Supreme Court.

The ruling only mentions the state’s primary election on March 5, when Republican voters will choose their preferred candidate for president. But it could affect the general election in Colorado next November.

It is the first ever use of Section 3 of the US Constitution’s 14th Amendment to disqualify a presidential candidate.