2010 was R+6, which this year would probably wind up taking out Udall and quite possibly Hickenlooper, too. For Udall to survive it probably has to be no worse than r+3. Given current turnout, I don't see that happening unless Democratic GOTV had a much stronger weekend than Republicans. I mean, they only have until Friday to mail ballots back unless they deliver them in-person, and that requires the sort of motivation that Democrats don't appear to possess this year.
It just shows how different Colorado is politically without Barack Obama on the ballot.
What was the number in 2012?