When someone is fighting along side you in the trenches, he is an FF. When he decides that he wants to go fight for the opposition and start hurling arrows back at you (as he would presumably be used by the Dems to defeat moderate Republicans), that would make him a huge HP.
Chafee is about the last Republican I would trust in a trench.
As soon as the morning light has broken
Then we attack
If nobody tries too hard to kill you
I got your back
Across the desert
Back to brave the burning sand
Back to question to every effort
Back to challenge your command