The attorney general is calling on the “full faith and credit” clause of the U.S. Constitution, which says states should typically honor each other’s judicial proceedings.

The Texas Supreme Court should vacate the seats of 13 state House Democrats who left the state, Attorney General Ken Paxton argued in petitions filed Friday afternoon. Paxton’s filings, known as quo warranto petitions,

"This court must give full faith and credit to warrants duly issued by the Texas House of Representatives," the lawsuit states.