With the Nov. 3 midterm elections five weeks away, Republicans are confronting a strategic tension: President Donald Trump may help bring less frequent voters to the polls, but his unpopularity could complicate campaigns in close races. Some GOP candidates are wary of appearing with Trump for fear of alienating undecided voters. At the same time, keeping him at a distance could make it harder to energize the party’s base, a group Republicans see as essential to their chances. Candidates are also navigating persistent concerns about the economy and high gas prices, as well as the prolonged war in Iran. Those issues add to the challenge of deciding how prominently to feature a president whose political appeal can motivate supporters while presenting risks with persuadable voters. “They may not want Trump to come to the district, but there are still things that Trump can do to help,” one national Republican operative said, speaking anonymously to discuss the political landscape. Trump headlined the Republican National Committee’s first midterm convention in Dallas on Sept. 10, where he sought to promote his administration’s record and rally support for GOP candidates. The November contests will test whether his ability to draw committed supporters can offset concerns among voters who may decide close races.