But there are a couple of other factors at work. First of all, both parties have their no-chance candidates. In the GOP, these tend to be single-issue activists or ideological purists who the cynics among us suspect are interested in getting radio shows or cable news gigs, or in selling books. Most Democratic vanity candidates are running for a Cabinet position in the next administration. As a result, they tend not to go for the jugular, particularly when the prohibitive front-runner is from a famously vindictive political dynasty with near-monopoly control of the party.