Illinois Gov. JB Pritzker vowed on late-night television to protect Texas House Democrats who fled to Illinois to try and stop the Republican-controlled state Legislature from redrawing congressional district boundaries to the GOP’s advantage ahead of next year’s midterm election.

Four hundred people were evacuated from the hotel where they were staying, but they were allowed to eventually return.

Texas Democrats staying in Illinois were evacuated from their hotel on Wednesday morning over a potential bomb threat, authorities said.