Former US President Donald Trump on Wednesday asked the US Supreme Court to intervene after Colorado's top court disqualified him from the state's Republican primary ballot for engaging in insurrection leading up to the January 6, 2021, attack on the US Capitol.

Trump, the frontrunner for the Republican 2024 presidential nomination, is contesting the December 19 Colorado Supreme Court decision that disqualified him under a constitutional provision barring anyone who 'engaged in insurrection or rebellion' from holding public office.

The state high court had already put its decision on hold until January 4, stating that Trump would remain on the ballot if he appealed.

Trump's filing places a politically explosive case before the nation's highest judicial body, whose 6-3 conservative majority includes three of his own appointees. The justices' action will shape a wider effort to disqualify Trump from other state ballots as the 2024 election draws closer.

In the filing, Trump's lawyers asked the justices to 'summarily reverse' the Colorado Supreme Court because the question of presidential eligibility is reserved for Congress.

The state court's decision marks 'the first time in the history of the United States that the judiciary has prevented voters from casting ballots for the leading major-party presidential candidate,' the lawyers said, adding that the ruling 'is not and cannot be correct.'

The Jan. 6 attack was an attempt by Trump's supporters to overturn his 2020 election loss to Democratic President Joe Biden, which Trump falsely claims was the result of fraud.

Trump has also appealed to a Maine state court a decision by that state's top election official barring him from the primary ballot under the same constitutional provision at issue in the Colorado case.