The disqualification of the 77-year-old former president on Tuesday was based on the Constitution's 14th Amendment, which says officials who take an oath to support the US Constitution are banned from future office if they "engaged in insurrection"

Trump is currently the front-runner in the Republican Party's nomination process for the race for the White House in 2024. Trump's campaign has vowed to appeal against the "flawed" ruling by the Supreme Court of Colorado in the US Supreme Court

The Colorado Supreme Court upheld a trial judge's decision that Trump engaged in the January 6, 2021, insurrection and also overturned her conclusion that the ban does not apply to the presidency

The landmark decision from the divided top state court marks the first time a court has found Trump ineligible to return to the White House due to his conduct surrounding the January 6, 2021, attack on the US Capitol, CBS News reported

Never before has a court determined that a presidential candidate is disqualified under the Civil War-era provision clause, it said

The state high court stayed its ruling until January 4, a day before the deadline for the state secretary to certify the candidates for Colorado's March 5 primary election

The 4-3 ruling by the seven-member Colorado Supreme Court does not apply outside of the state

"President Trump's direct and express efforts, over several months, exhorting his supporters to march to the Capitol to prevent what he falsely characterised as an alleged fraud on the people of this country were indisputably overt and voluntary," the justices wrote

"Moreover," they wrote, "the evidence amply showed that President Trump undertook all these actions to aid and further a common unlawful purpose that he himself conceived and set in motion: prevent Congress from certifying the 2020 presidential election and stop the peaceful transfer of power"