U.S. Citizens Head To The Polls To Vote In Presidential Election
In This Photo: Susan Keller, Helena Vuong
Election workers Susan Keller (L) and Helena Vuong set up a directional sign before the polling station at the Clark County Fire Training Center opens on November 6, 2012 in Las Vegas, Nevada. Voting is underway in the battleground state of Nevada as President Barack Obama and Republican nominee former Massachusetts Gov. Mitt Romney remain in a virtual tie in the national polls.
(Nov. 5, 2012 - Source: David Becker/Getty Images North America) more pics from this album »