Here is a scenario that I have been thinking about: Lets say I am a huge party loyalist and, for some reason, I think Joe Lieberman has the best chance of keeping his seet in Democatic hands.
If I give him money now, and he loses the primary but runs against the Democratic nominee, what happens to my money? How would I know that Joe would not use my money against the winner of the Democratic primary when he runs as a representative of the Me Like I Joe Myself Not You Lieberman party?
His campaign against the Democratic nominee would hurt the Democratic party, which I am trying to support. Could my money be used for exactly the opposite of what I want by a switcher like Joe? Are there laws about these things? Could I demand a refund?