Why "can"? Why not "should"?
"Should" is to my mind a much more interesting question than "can"…
Ask Dr. Popkin: Can the Romney Campaign Be Saved?: Sam Popkin: [T]the GOP Tea Party base is pushing for policies that cannot be defended nationally by a presidential candidate. The Romney campaign wanted the election to be a referendum on Obama's record on jobs. Once the Tea Party tail started wagging the elephant, Romney pandered himself into a corner. Each time the Romney campaign has seemed ready to acknowledge a more centrist idea, the far right yelled and Romney blinked.