Hollywood stars Ben Affleck and Matt Damon and their pregnant wives turned up at a Miami fundraiser for presumptive Democratic presidential candidate Barrack Obama on Saturday. Both the couples attended the orientation at club 'Set' to pledge their support for Obama. According to reports, the actors also delivered speeches from the stage. "Jennifer Garner gave the first speech supporting Obama, and she was very witty, clever and funny," Peoples Magazine quoted a source as saying. "She was followed by her husband Ben, then Matt Damon. The men gave serious political speeches on how the country needs change," the source said....