It isn't just Karl Rove's tactics, it seems to be the tactics of the entire GOP. They have almost literally done nothing for 6 years now, and are never going to win if they don't ever put forth an actual plan of positive action.
The only exception has been the work of Paul Ryan on the budget, which him and Romney actually did pretty well with. Considering how terrible that budget was it goes to show how little sanity it would take to seriously challenge the democrats.
But Instead we get Rove's brain damage theory and day after day of invent-a-scandal. Hillary doesn't need any help. She's a pro and the GOP is acting like a pee-wee league. Unless something drastic changes, I expect a victory as easy as Obama's