In an extraordinary move to counter Republican redistricting in Texas, dozens of Democrats in the state House are landing in Illinois to deny a quorum.

The revolt by the state House Democrats, many of whom went to Illinois or New York on Sunday, and Abbott giving them less than 24 hours to come home ratcheted up a widening fight over congressional maps that began in Texas but has drawn in Democratic governors who have floated the possibility of rushing to redraw their own state’s maps in retaliation.