From the Central Valley of California to Midwestern battlegrounds and suburban districts of the northeast, the new law already is shaping the 2026 midterm battle for control of the House of Representatives. The outcome will set the tone for Trump’s final two years in the Oval Office.

The massive tax and budget bill President Trump signed into law this month could prove a major challenge for Republicans in the 2026 midterm elections — but probably not in the places that will be hurt the most by it.