September 6, 2008, Speech to the AARP Convention, C-SPAN

"[John McCain's] campaign has...suggest[ed] that the best answer to the growing pressures on Social Security might be to cut cost-of-living adjustments or raise the retirement age.   I will not do either."

 

October 30, 2007, Democratic Debate and Drexel University [PDF]

 "Social Security is not in crisis; it is a fundamentally sound system... The best idea is to lift the cap on the payroll tax, potentially exempting middle-class folks, but making sure that the wealthy are paying more of their fair share, a little bit more."