WASHINGTON—President Donald Trump said that Democrats are nominating “jihadists” and candidates who want to do away with the U.S. Senate, putting them at a midterm disadvantage. “But when you look at the radicalism and the craziness of the candidates and the stupidity of what they’re suggesting: ‘Let’s get rid of the Supreme Court, let’s get rid of the presidency, let’s get rid of the Senate,'” Trump said. “…Sometimes I’d like to get rid of the Senate too, but I don’t say it, and I wouldn’t do it. “I just don’t think it’s going to happen. I think that they start off—now I may be wrong you know—they start off with a big disadvantage,” Trump said.