The 52-year-old Fetterman, who confirmed that he has been hospitalized all weekend, insisted the health emergency wasn’t slowing his campaign. But the stunning revelation, just two days before Pennsylvania’s primary election, created a cloud of uncertainty over the Democratic front-runner’s candidacy in what may be one of the party’s best Senate pickup opportunities. In a short video released by his campaign, a seated Fetterman, speaking clearly, explained that “I just wasn’t feeling very well” on Friday and that he decided to go to the hospital at the urging of his wife. He detailed the situation further in a written statement....