<Li> Wednesday, October 3: The first presidential debate took place at the University of Denver in Denver, Colorado, moderated by Jim Lehrer . </Li> <Li> Thursday, October 11: The vice-presidential debate took place at Centre College in Danville, Kentucky, moderated by Martha Raddatz . </Li> <Li> Tuesday, October 16: The second presidential debate took place at Hofstra University in Hempstead, New York, moderated by Candy Crowley . It had a town hall format . </Li> <Li> Monday, October 22: The third presidential debate took place at Lynn University in Boca Raton, Florida, moderated by Bob Schieffer . </Li>

Who ran for president in 2008 and 2012