Part of former Florida Republican governor (and current Democratic candidate for the same gig) Charlie Crist’s unctuous appeal has always been his chameleon-like ability to mold himself to the audience and the moment in a pleasant, non-offensive way. You could never quite put your finger on why you didn’t like the guy since he was always so affable, regardless of the crowd. In a night and day contrast, his running mate Karla Hernandez, president of United Teachers of Dade (the largest teachers union in the southeastern United States), doesn’t seem to have as deft or natural a touch when it comes to real vice union politics. She appears to have been chosen purely as a craven bid to bring teachers on board the Crist train and is a combative train wreck in her own right.