Reply #1: The closest thing that I can think of is that he signed the letter

[karynnj]

back in March that 64 Senators signed that backed an overall bipartisan approach. (Here is Shaheen's press release (it was the first up in the google search I used) - http://shaheen.senate.gov/news/press/release/?id=05bee115-f795-426e-9fb2-5072f03fc6de

Kerry's floor speeches have all backed a comprehensive overall of taxes, but also strongly argued that nothing other than minor tweaks - which did not cut benefits - would be needed to make SS solvent into the next century. He has also spoken of not cutting Medicare benefits.

At this point, the gang of six's plan is not at the kind of detail level that I think anyone could say they are definitively for it - as there are likely many important details up in the air. It also has not been scored by CBO - and might not be specific and detailed enough for scoring to be done yet. Durbin also says that there is no way it could be ready to be voted on before August 2.