The constitutional amendment that election officials in Colorado and Maine are relying on to block former President Donald Trump from the ballot is clear — and isn’t undemocratic, Rep. Jamie Raskin (D-Md.) argued Sunday.

“Is it undemocratic that [former California Gov.] Arnold Schwarzenegger and [Energy Secretary] Jennifer Granholm can’t run for president because they weren’t born in the country? If you think about it, of all of the forms of disqualification that we have, the one that disqualifies people for engaging in insurrection is the most democratic because it’s the one where people choose themselves to be disqualified,” Raskin, a former constitutional law professor, said Sunday during an interview on CNN’s “State of the Union.” (Schwarzenegger was born in Austria, Granholm in Canada.)

“Donald Trump is in that tiny, tiny number of people who have essentially disqualified themselves,” he added.