Article Photos: Unions, Hispanics, women carry Obama to Nevada win 5/6

  A line forms outside a polling place as people gather to vote on Election Day, Tuesday, Nov. 6, 2012, in Las Vegas. After a grinding presidential campaign President Barack Obama and Republican presidential candidate, former Massachusetts Gov. Mitt Romney, yield center stage to American voters Tuesday for an Election Day choice that will frame the contours of government and the nation for years to come. (AP Photo/Julie Jacobson)