The others are people abandoning principle for expediency and conservatism for mere Party loyalty.
Ah yes, how I remember last year when FReepers who claimed to be conservatives were telling us that we needed to stop being "single issue" voters and forget about things like abortion and homosexuality. The told us that we need to nominate Rudy or we were stuck with Hillary. And that (this is my favorite) conservatives had had their "foot on the neck" of the GOP for too long.