As Trump held rallies around the nation, his White House was consumed by dramas that reinforce how his presidency has become a drag on his party’s prospects in the midterms.
The schedule is especially packed in New Hampshire, an early presidential nominating state where there is a competitive Senate race Democrats are flocking to this month.
Gov. Gavin Newsom of California taking the stage during a campaign event for Representative Chris Pappas, the Democratic Senate nominee, in Exeter, N.H., on Saturday.
Farmers and ranchers have supported President Trump for a decade. But the war in Iran, tariffs and other administration policies have soured some on the G.O.P.
Senator Bernie Sanders of Vermont has made a point of investing in Republican-leaning states. He rallied in Tampa for Ms. Nixon, the underdog Democratic nominee for Florida Senate.
Senator Bernie Sanders, independent of Vermont, with Angie Nixon, the Democratic candidate for Senate in Florida, during a campaign stop on Saturday in Tampa, Fla.