Democrats fear electoral bloodbath in North Carolina

House Democrats fighting to flip control of the chamber next year will first have to overcome an expected bloodbath in North Carolina, where Republicans have secured a new map all but guaranteeing a red wave in November.

GOP lawmakers in the state legislature approved a redistricting plan in October that sets the stage for Republicans to pick up at least three seats, and maybe four, in the 14-member delegation — a tally that, by itself, would double the GOP’s slender House majority on Capitol Hill.

The new lines have squeezed...