President Barack Obama and Republican challenger Mitt Romney debate in Denver, Colorado. (Charlie Neibergall / AP)
US President Barack Obama and Republican presidential candidate Mitt Romney faced off in three debates: Oct. 3 in Denver, Colorado, Oct. 16 in Hempstead, New York, and Oct. 22 in Boca Raton, Florida.
All debates take place from 9-10:30 pm ET. - Commission on Presidential Debates