Good Morning America has asked the leading Democratic and Republican presidential candidates to participate in own town hall meetings. Hillary Clinton, Barack Obama, John Edwards, Rudy Giuliani, John McCain, and Mitt Romney were all invited.

Next Monday, the first candidate is up: Hillary Clinton will talk to Robin Roberts in Des Moines, Iowa, in front of a live audience. "The town hall meeting will focus on health care, including an emphasis on the state of health care for America's veterans," ABC says. Viewers can submit questions via ABCNews.com...