A wave of Trump-aligned political spending, totaling roughly $150 million, is being directed into competitive House and Senate races as both parties gear up for the midterms. The spending underscores how central the president remains to Republican midterm strategy even in districts where his personal popularity is mixed.

Party strategists describe the investment as an effort to nationalize competitive races around the administration’s record, betting that highlighting the president’s priorities will motivate the party’s base to turn out. Democratic strategists, in turn, are wagering that the same association will energize their own voters in swing districts.

The scale of the spending reflects how expensive and nationalized midterm House races have become, with outside groups increasingly setting the tone in individual contests once decided largely by local dynamics.