It's coming...
Snuck in the middle of an article about Rep Clay Shaw's (R-FL) Social Security reform bill we see (my emphesis):
Since President George W. Bush is about to put his plan on the table, he said, Republicans are reluctant to sign on to anything that may smack – at least to voters – of something they may not agree with.
I'm not sure what the political definition of "about" is, but Shaw hints it's closer than we think.
By the way, Shaw's proposal was rejected by Democrats (although he did talk to Joe Liberman) and met with general Republican indifference.
And since I'm curious, Shaw won the 2004 election by a 63-35 margin. Seems pretty safe to me.