McCaskill Leading all Potential Opponents.

Claire McCaskill is in the lead against all of the potential Republican challengers for her Senate seat, but doesn’t hit the 50 percent mark against any of them. The poll was conducted by the Mellman Group, a Democratic super PAC. The inability of the senator from Missouri to beat any of the candidates by more than a single-digit margin suggests “the weakness of the GOP field may have more to say about McCaskill’s advantage in the race than her own popularity among constituents,” suggests The Hill.