THat's what the swift boat people did, and the media still attacked them for being mean to a real war hero.
Two points.
1.) When it comes to defending America, guys like the Swiftees aren't going to be deterred cause someone might call them names. Commie steel didn't stop them, yakking letys won't either. Same deal with Murtha.
2.) It worked.
As we Marine types say Semper Fi.