WASHINGTON (NEXSTAR) – Another historic day at the U.S. Supreme Court Thursday, when justices will hear a landmark case on whether former president Donald Trump is eligible for a second run for the White House.

The question before the Supreme Court is about Trump’s eligibility to be on the Colorado primary because of his actions surrounding the January 6th Capitol attack.

The legal battle comes after Colorado’s Supreme Court ruled in favor of a group of voters who challenged Trump’s candidacy based on his actions on January 6th.

They argued those actions violated Section 3 of the 14th Amendment which disqualifies officers of the United States who “have engaged in insurrection or rebellion” from holding office. 

“There are lots of implications for the 2024 election,” said Georgetown Law Professor, Dr. Michele Goodwin.

Trump’s legal team argues he is not an “officer of the United States” as a former president and that he did not engage in an insurrection.

“He deserves to be on the ballot is their argument, and voters should decide who becomes the President and not courts,” said Goodwin.

Trump’s allies on Capitol Hill are jumping to his defense.

“Absolutely absurd, it’s completely un-American, completely unconstitutional,” said Rep. Lauren Boebert (R-Colo.).

The Supreme Court is under pressure to issue its ruling soon because several states start voting next month.