LAS VEGAS — Leaving behind the chaos he sowed in Washington with his shifting immigration policies, President Trump visited his second midterm battleground state of the week on Saturday to deliver the blunt message he has repeated at rallies for weeks: “We need more Republicans.”
For a few hours, at least, Mr. Trump put the intricacies of governing in his rearview mirror, attending a Republican convention on the outskirts of the city here, a private event for Senator Dean Heller and a tax-focused round-table discussion.
Back in the capital, some government officials are reeling over directives to enforce — and, as of Wednesday, reverse — Trump administration policies that resulted in the separation of some 2,300 children from their parents at the border. Congressional Republicans, stalled by dysfunction and flummoxed by the president’s back-and-forth orders, are unsure how to proceed with a legislative fix before November.
Mr. Trump, seemingly unconcerned by the clashes, has instead focused on deploying an old campaign tactic: inundating the public with conflicting messages, then hitting the trail to speak to supporters who are more focused on winning the state and sharing his grievances about the Democrats.
“‘Let’s leave North Korea for Trump,’” Mr. Trump lamented, referring to the Democrats during a 45-minute speech that echoed his stop on Wednesday in Duluth, Minn. “‘Let’s leave trade for Trump. Let’s leave immigration for Trump.’ They left us a lot, but I’m actually having a good time.”
Mr. Trump was here to stump for Mr. Heller, a Republican whose seat is widely seen as the best chance of a Democratic pickup. Mr. Heller, 58, is in a politically precarious position after having first angered Republicans by voting against the repeal of the Affordable Care Act, then angering Democrats by voting for a modified version of a repeal.
Mr. Heller’s race against Representative Jacky Rosen, a Democrat, will be one of the most competitive in the country this fall. In Reno on Saturday, about 400 miles from Mr. Trump’s events, Ms. Rosen spoke at a Democratic convention, held in a cavernous casino ballroom, and made it clear that Mr. Heller should pay a price for his decision to align himself so closely with the president.
“Senator Heller, he had a clear choice on health care: listen to Nevadans, or listen to Mitch McConnell and Donald Trump,” Ms. Rosen said. “He broke his promise. He broke his promise to all Nevadans.”
In the keynote speech, Senator Elizabeth Warren,