The biggest problem in politics is that you help some S.O.B. get what he wants and then he throws you out of the train.
Source: On Michigan governor James Blanchard's decision to drop her from reelection ticket; in New York Times, 5 Sep 1990.
-- Martha Wright Griffiths, (Jan 29 1912-2003), US politician; She was a Congresswoman from Michigan 1955-1975, best known for adding sex discrimination as a prohibited act in the 1962 Civil Rights Act.