b bryan moar is following the returns from washington. >> reporter: the very latest news from nbc is that the alabama and mississippi races are both too early to call. for the republican candidates, they're hoping to shake things up tonight. president obama meanwhile is looking at some trouble on the horizon. as voters headed to the polls in alabama and mississippi, mitt romney was showing surprising strength in the polls. but still fighting an enthusiasm gap. >> i just still felt like romney was the best candidate for me. >> reporter: romney has already moved on to the upcoming caucus state of missouri a day after his 65th birthday, romney was looking for a surprise from voters. >> this is all about getting delegates and love to get more delegates tonight. if the polls are right, we'll pick up some delegates. >> reporter: but a win? >> he has the ability to seal the deal tonight with a win in either state, but a loss means this race continues to move on. >> reporter: newt gingrich may have the most riding on today's results. no win and his path forward looks like a dead end. rick sa