From a little book I found, called The Portable Curmudgeon, compiled by Jon Winokur. Ignore that all politicians here are considered male.
A good politician is quite as unthinkable as an honest burglar. —H.L. Mencken
The secret of the demagogue is to make himself as stupid as his audience so that they believe they are as clever as he. —Karl Krause
Anybody who wants the presidency so much that he’ll spend two years organizing and campaigning for it is not to be trusted with the office.
A politician is a person with whose politics you don’t agree; if you agree with him he is a statesman. —David Lloyd George
I once said of a politician, “He’ll double-cross that bridge when he comes to it.” —Oscar Levant