( CM ) - BEN AFFLECK and JENNIFER GARNER are going public with their support for U.S. presidential hopeful BARACK OBAMA by hosting a fundraiser for the Democrat. Affleck will return home to Boston, Massachusetts with his wife on Sunday (16Mar08) to oversee the star-studded, $250 (GBP125)-a-head party. Affleck and Garner aren't Obama's only big-name fans - Charlize Theron, Oprah Winfrey, Jessica Alba and Will Smith have also declared their support for him.