"I won the states that we have to win -- Ohio, now Pennsylvania. It's very hard to imagine a Democrat getting to the White House without winning those states."

"The problem, to the extent there is a problem, is that older voters are very loyal to Senator Clinton. Part of that is they have a track record of voting for not just Senator Clinton but also for her husband."

-- Sen. Barack Obama

"The longer this goes on, the more difficult it may be to heal the wounds."

--Chris Van Hollen, chairman of the Democratic Congressional Campaign Committee