This looks interesting:
The power of words in politics is well known, and Lend Me Your Ears, the fourth edition of the Oxford Dictionary of Political Quotations, brings together both words of wisdom and things that might have been better left unsaid. This unique reference not only charts the most influential political events of recent times through the things people said about them - including an international financial crisis and a watershed in American presidential politics - but also digs deeper than ever into the rich heritage of political history from around the world.
http://www.amazon.com/Lend-Your-Ears...1565929&sr=1-2