Natalie Portman stepped out to lend her celebrity to President Barack Obama\'s campaign re-election efforts in Las Vegas as part of the “Nevada Women Vote 2012 Summit”. The actress looked unflattering in black collared blouse and black pants. Talking about her decision to back Obama, Portman said in a recent interview, \"President Obama fights for women every day, and I am proud to stand with him on behalf of women and girls across the country”.