the big issue was the constitutional amendment defining marriage soulias a union between a man and a woman. voters overwhelmingly approved it and north carolina becomes the 30th state in the nation to adopt at ban on same sex marriage. meantime governor mitt romney picked up presidential primary wins in north carolina, indiana and west virgina. today he is in colorado, one of the 12 swing states that very well could decide the presidential election. chief political correspondent carl cameron live in washington for us now. carl, the president won colorado last time around. does mitt romney think he could take it back? he does. he recognizes it will be tough, expensive but it is possible. there are about a dozen battleground states as you said and they are all likely to decide this election in one way or another. colorado has nine electoral college votes and very much in play. it swung from republican in 2004 to democrat in 2008 when mr. obama beat then