After-dinner mint: how ex-politicians hit paydirt with public speaking

Cheers! President Barack Obama is set to earn $400,000 from an audience of Wall Street bankers.When Barack Obama banks the cheque for $400,000 he will receive for talking to an audience of Wall Street bankers and their most important clients in September, the former president might like to quietly thank the statesman who did so much to pioneer the idea of the celebrity political speaker: Winston Churchill.More than 70 years ago, in March 1946, Churchill – recently ousted as prime minister