WASHINGTON — Donald Trump’s lawyers on Thursday bring his fight against a campaign to kick him off state presidential ballots for his actions involving the 2021 Capitol attack to the US Supreme Court in a case with major implications for the November election.

The nine justices, three of whom Mr. Trump appointed, will hear arguments in his appeal of a lower court’s decision to disqualify him from Colorado’s Republican presidential primary ballot under the US Constitution’s 14         Amendment after finding that he participated in an insurrection.

Section 3 of the 14^th Amendment bars from holding public office any “officer of the United States” who took an oath “to support the Constitution of the United States” and then “engaged in insurrection or rebellion against the same, or given aid or comfort to the enemies thereof.”

Mr. Trump is not expected to be Mr. present at the arguments scheduled for 10 a.m. ET (1500 GMT). Instead, he plans to start his day at his Florida home and travel to Nevada, according to a source familiar with his plans. Nevada on Thursday night holds a nominating caucus that Mr. Trump is expected to win handily as he cruises towards his party’s nomination to challenge Democratic President Joseph R. Biden on Nov. 5.

The case calls on the Supreme Court to play a central role in a presidential contest unlike any since its landmark Bush v. Gore decision that handed Republican George W. Bush the presidency over Democrat Al Gore in 2000.

The justices also may soon confront another Trump-related case. Trump faces a Monday deadline to ask the Supreme Court to intervene after a US appeals court rejected his claim for immunity in one of two cases in which he faces criminal charges related to his efforts to overturn his 2020 election loss to Biden.

The Dec. 19 ruling by Colorado’s top court came amid a wider — and mostly unsuccessful — drive by anti-Trump forces to disqualify him in more than two dozen other states over his actions relating to the Jan. 6, 2021, Capitol attack. Maine also has barred him from its ballot, a decision put on hold pending the Supreme Court’s ruling in the Colorado case.

The justices could issue a decision quickly. Colorado’s Republican primary is scheduled for March 5. Former South Carolina Governor Nikki Haley is Mr. Trump’s lone remaining rival for the nomination.

The Colorado case raises momentous questions for the Supreme Court, which has a 6-3 conservative majority. Trump’s lawyers have argued that he is not subject to the disqualification language because a president is not an “officer of the United States,” that the provision cannot be enforced by courts absent congressional legislation, and that he did not engage in an insurrection.

Trump supporters attacked police and swarmed the Capitol in a bid to prevent Congress from certifying Biden’s victory. Mr. Trump gave an incendiary speech to supporters beforehand, telling them to go to the Capitol and “fight like hell.” He then for hours rebuffed requests that he urge the mob to stop.

The 14^th Amendment was ratified in the aftermath of the American Civil War of 1861-1865 in which seceding Southern states that allowed the practice of slavery rebelled against the US government.

The plaintiffs who filed the lawsuit seeking to disqualify Trump — four Republican voters and two unaffiliated voters — have said a president clearly is an “officer of the United States” because “it would make no sense to read Section 3 as disqualifying all oath-breaking insurrectionists except the one holding the highest office in the land.”

The justices could resolve the case without explicitly deciding whether Trump engaged in an insurrection. The case also differs sharply from the criminal cases against him. The eventual ruling in the Colorado case, even if favorable to Trump, may not indicate how the justices would rule on his bid for immunity from prosecution as a former president.

The plaintiffs in the Colorado case are backed by Citizens for Responsibility and Ethics in Washington, a liberal watchdog group. — Reuters