California Democrats' rush to schedule an emergency election to remake U.S. House districts and counter rival moves by Texas Republicans has created a dilemma for county officials who are being urged to plan for an election that hasn't been scheduled and might never happen.

As a Texas senator summoned the F.B.I. to round up Democrats, the redistricting war that began in Texas was spreading, with California aiming at five Republican House seats.

If Texas Republicans go through with their plan to redraw the state's congressional districts to give Republicans five more U.S. House seats, California Gov. Gavin Newsom, a Democrat, says he'll push through new districts in his state that benefit Democrats.