Last-minute preparations are underway in Las Vegas as the Democratic presidential hopefuls gear up for Tuesday's debate. This is a behind-the-scenes view of the debate from the candidates and CNN's journalists. CNN's coverage of the debate begins at 8:30 p.m. ET Tuesday.
Planned Parenthood announced Tuesday that it would no longer accept reimbursement for fetal tissue used for research, a move the group's president hopes will extinguish the firestorm sparked by the release of edited, undercover videos this summer.