Republicans retreat as Democrats surge in key House races

Republicans are pulling back from several competitive U.S. House districts. At the same time, Democrats are raising money fast for candidates who once seemed unlikely to win. The shift shows how the battle for control of the House is changing. Districts that Republicans once fought hard to defend are now less of a priority. Democrats, seeing an opening, are investing more in those same races. The moves suggest both parties are recalculating where they can win. With control of the House at stake, even small shifts in money and attention can decide close elections.