Ahead of the November midterm elections, voters widely favor the Republican candidate in competitive House districts crucial to GOP efforts to flip the chamber, a new poll indicates. Among those living in congressional districts rated at least somewhat competitive by ABC’s FiveThirtyEight, registered voters favor Republican candidates by 55 to 34 percent, according to a poll produced for ABC News/Washington Post by Langer Research Associates. In heavily Democratic districts, Democrats lead by 35 points, “pointing to a potential overvote where they’re most prevalent,” the poll notes. Accounting for all respondents, 47 percent would vote for the Republican candidate and 46...