Talk-show diva and business billionaire Oprah Winfrey shed her nonpartisanship this presidential election cycle and not only endorsed her man Barack Obama. She also actively campaigned for him in the primary, drawing huge crowds in Iowa (which he won), North Carolina (which he won) and New Hampshire (which he lost).

This despite a dip in her show's ratings among women who'd rather not get politics there or were disappointed that a woman who built her empire on women did not support