I still say that “Enemy Action” would fail if there was nothing there to be found. The GOP candidates are putting themselves in this. Is it really a surprise that an opponent party would look for illegal activity? I think most of us would if in similar situations. Our vetting of candidates is atrocious.
I think if there is nothing there, they will make something up. In Alabama they dragged out two kook women to make unprovable accusations from 40 years ago. In George Allen's race, they turned "Macaca" into a racial slur, and beat him with it. Christine O'Donnell they called a "Witch", Susan Angle was a radical extremist, and Chris McDaniel was a racists who didn't want black people to vote.
When they want to take out a reform candidate, they will either make up or twist information to create the necessary dirt to destroy them.
I think most of us would if in similar situations. Our vetting of candidates is atrocious.
I think sometimes foolish candidates are put up to it for the purpose of splitting the vote and letting a moderate/liberal win.