Talk about wearing your beliefs on your sleeve. The latest fashion in political T-shirts isn’t long-sleeve but long-form, as Barack Obama’s reelection campaign has begun selling merchandise with the president’s face and a picture of the long-form birth certificate he released in late April. There are coffee mugs, too. Campaign staffers say they’re pushing the apparel because of the forthcoming release of Where’s the Birth Certificate?, an attack tome by author Jerome Corsi, who has a history of politically charged but factually incorrect bestsellers. A shirt can be yours for a donation of $25.