Worth re-linking for the following stats on Perry. Here's why Rove is rattled:
[I]n an average of eight national polls conducted since July 1, Mr. Perry trails Mr. Obama by an average of 11 percentage points … Over all, Mr. Perry has won his three elected terms with an average victory margin of 13 percentage points. That’s certainly not a disaster, but it lags the 19-point margin for other Texas Republicans running in those years.
In the most recent two elections, Mr. Perry was losing quite a few voters who were voting for Republican for almost every other office.