On Contraception Coverage News Today

>> reporter: despite a poll showing an unthenthusiastic candidate, romney insists he is winning voters. >> its gut check time. who wants it the most. what do you say? >> reporter: rick santorum has a two point edge. a virtual tie. he focused on the flip-flop on contraception coverage. >> he will be the weakest candidate we could possibly put forward on the most important issue of today. >> reporter: santorum is also leading polls in tennessee. newt gingrich hopes to win delegates there and says ...