As state courts remain divided on whether the U.S. Constitution’s insurrection clause can block former President Donald Trump from appearing on 2024 primary ballots, one election law professor said the U.S. Supreme Court may have to take up some unprecedented, hot-button issues in the near future.

In the latest legal battle, the Colorado Republican State Central Committee filed a petition for a writ of certiorari Wednesday to the U.S. Supreme Court after the Colorado Supreme Court issued a divided opinion on whether Section 3 of the Fourteenth Amendment disqualifies the former president from appearing on the primary ballot. The provision in question prohibits anyone who swore an oath to support the Constitution and then “engaged in insurrection” against it from holding office.