DENVER (WUSA) - With just over a month until voters go to the polls, preparations for the first presidential debate are underway at the University of Denver, where students stand in for the candidates during a dress rehearsal as lights and acoustics are adjusted.

On Tuesday night, President Barack Obama and Republican candidate Mitt Romney will shake hands, acknowledge the crowd, and face off to discuss issues on the minds of Americans.(Photos by Getty Images)

Read or Share this story: http://on.wusa9.com/1c3HgFn