Machiavelli’s famous advice to politicians is that it is better to be feared than loved. Less often quoted is an equally valuable admonition: avoid being hated.

Jim DeMint, the former senator-turned-Tea Party leader at the helm of the Heritage Foundation, never tried to win the love of the Republican establishment. He did, however, succeed over the past several years, first as the junior senator from South Carolina and since last year, as head of the GOP’s most prominent think tank, at being feared by his fellow Republicans. But now he finds himself in the position of being merely despised.
http://www.politico.com/magazine/sto...4209_full.html

A fascinating look at the history and development of Republican "purity test" maneuvers, led by DeMint's Heritage Action PAC. Once powerful and feared, he's started to lose his grip.