The filing deadline for federal candidates in Indiana is Tuesday. At this point, the only incumbent who will not face any major-party opposition is . . . Rep. Mike Pence.
Ironically, Pence’s Muncie-centered district is not the most Republican-leaning one in the state, at least according to the Cook Partisan Voting Index. The districts of Reps. Mark Souder, Steve Buyer, and Dan Burton are more heavily Republican.