You should get more up-to-date polling information. 27% is well well below the current “acceptance” rating for Romney. I’m not paying attention so I don’t know what the latest polls are showing, but I see from other FR posts that he is even with Obama in national polling, which does also suggest that he is drawing a good portion of the republican vote now.
You’re right about my figure being somewhat dated. However, the current RCP Favorability/Unfavorability matchup is
Romney: Favorable/Unfavorable 36.6 41.4 -4.8
Obama: Favorable/Unfavorable 49.8 44.8 +5.0
They are both even, on the voting @ 46%, 4% Third party and 4% Independant. (Rasmussen).
I interpret those figures as a very “lukewarm” acceptance in the electorate for Romney. No one is excited about him and many of that 46% vote for Willard will stay home.
It might be possible for him to change that with the choice of a very solid Conservative for VP, but as another Freeper predicted, he has a very scary possibility of choosing a Huntsman.