New NBC/Marist poll of South Carolina voters shows Obama on the losing end of head-to-head match-ups with Republican contenders.
Romney 46 — Obama 40
Perry 43 — Obama 42
Cain 44 — Obama 42
And/but President leads GOP ’12ers in FL poll.
Obama 45 — Romney 43
Obama 47 — Perry 39
Obama 47 — Cain 41
