By Andrew Goudsward and Jack Queen WASHINGTON (Reuters) – Former President Donald Trump is disqualified from serving as U.S. president and cannot appear on the primary ballot in Colorado because of his role in the Jan. 6, 2021, attack on the U.S. Capitol by his supporters, the state’s top court ruled Tuesday. The historic 4-3 ruling by the Colorado Supreme Court, likely to be taken up by the U.S. Supreme Court, makes Trump the first presidential candidate deemed ineligible for the White House under a rarely used constitutional provision that bars officials who have engaged in “insurrection or …