Sen. John Fetterman (D-Pa.) said he'd leave the Democratic Party if it becomes the "anti-Israel party," though he signaled he had no plans to imminently depart the caucus. Why it matters: Republicans currently hold a narrow Senate majority, but with midterm elections looming, Fetterman's comments could be a blow to Democrats should they flip four seats in November and regain control. Fetterman acknowledged the Democrats' difficult Senate math when speaking Wednesday at The Hill Nation Summit: "And if we flip those four seats, then I would be 51, and ... watch what I do." He continued, "I'm the guy that...