Choose the person who pisses off liberals the most! Rudy! Rudy! Rudy!
That instinct used to be a largely bipartisan affair, though I guess it's changed a bit with Democrats moving a bit to the left (genuinely!) and also too trying to take back the word "liberal" from the dirty hippies who kept it warm all of these years (annoying!). I remember back in Ye Olde Early Days of Blooging when lefty bloggers generally called themselves liberals, some of the Very Serious People in DC who actually paid any attention to us would try to convince us that liberal was a toxic word (Rush Limbaugh is so scary!!!) and we should just embrace the word "progressive." And it was like, uh, that's a word that fake centrists who are actually conservatives slap on think tank names so they can pretend to be the "left" side of the acceptable debate.
So liberals we were.