The two sources for this story are The Hill (an article posted last night) and Thomas.gov (the Congressional website that gives information on votes and activities in Congress on a daily basis).
Yesterday in the Senate twelve Democrats and one Independent joined all Republicans to defeat a bill to halt
The link provided above to Thomas.gov has the specifics of the vote. The hope was that the passage of this legislation would convince doctors in the AMA to support the larger healthcare reform package that Congress is putting together.
Harry Reid is, of course, blaming the Republicans, but if all the Democrats had voted for halting cuts in Medicare reimbursement fees, the measure would have passed. It was defeated in a bipartisan manner–not along party lines.