Washington, Aug. 9: Barack Obama is to defy the critics who have branded him a shallow celebrity politician by holding the most star-studded political convention in American history. A list obtained by The Daily Telegraph shows an unprecedented number of Hollywood personalities and rock stars being lined to play a role in the Denver convention, where Obama will formally receive the party’s nomination at the end of the month. The decision to let some of them take to the centre stage is a calculated gamble by Obama to stick to his guns in courting the celebrity vote. It comes after...