Outsiders vs. insiders is the dominant story line in GOP primaries so far . After knocking off Eric Cantor , insurgents thought they had a sure win in Texas . one more GOP incumbents face challengers but hold lead in polls . Establishment Republican fear a tilt too far right may hurt party in last month .
Outsiders vs. insiders is the dominant story line in GOP primaries so far . After knocking off Eric Cantor , insurgents thought they had a sure win in Mississippi . Two more Republican Senate incumbents face challengers but hold lead in polls . Establishment Republicans fear a tilt too far right may hurt party in November .