The thing to look at is where Romney is stuck at in most of these polls, which is 44-46% and some times lower and that doesn't seem to really changing.
Actually the thing to look at is Obama, who performed
very well in all three of these states, winning each with the largest percentage taken by the winner since 1988.. is doing so badly
Obama is down TEN in Iowa, EIGHT in Colorado and SEVEN in Nevada
Romney is up THREE in Nevada from '08, and dead on in IA and CO, and all three of those McCain performances are the floor for Repubs in those states. Romney has plenty of growing room
What particularly strikes me is a week ago, NBC/Marist released FL, Ohio, Va.. and all showed Obama ahead 4-6%.. Now Florida, Ohio, Virginia are the 'easier' states for Romney to take back, and Nevada, Iowa, Colorado are supposedly the 'harder' ones.. yet Romney has Obama tied essentially in all three. This shows momentum in Romney's favor in just the last week