Can Republican candidates get any lower that this

When two Republicans are beating the crap out of each other, my normal reaction is to pull up a chair and pop some popcorn. I might even offer to hold their jackets. But sometimes one of them will throw a sucker punch that's so dirty (see John McCain's illegitimate black baby) that I have to step in and issue a warning.

Last week Bill Conrad's primary campaign for State Assembly in California took an unusal turn when he sent out a campaign mailing attacking his opponent, fellow Republican Tom Berryhill, for, er, having a heart transplant.

Can Republican candidates get any lower that this? Hey, there's still six months to go until the elections. I'm sure they'll come up with something!