Party platforms do not bind nominees but are still a sign of a party's core value. Here's what the Republican platform for 2012 says about Social Security:
While no changes should adversely affect any current or near-retiree, comprehensive reform should address our society’s remarkable medical advances in longevity and allow younger workers the option of creating their own personal investment accounts as supplements to the system. Younger Americans have lost all faith in the Social Security system, which is understandable when they read the non- partisan actuary’s reports about its future funding status. Born in an old industrial era beyond the memory of most Americans, it is long overdue for major change, not just another legislative stopgap that postpones a day of reckoning. To restore public trust in the system, Republicans are committed to setting it on a sound fiscal basis that will give workers control over, and a sound return on, their investments. The sooner we act, the sooner those close to retirement can be reassured of their benefits and younger workers can take responsibility for planning their own retirement decades from now.These are the same ideas that George W. Bush relied upon when he undertook to "reform" Social Security. That effort didn't work out too well for him.