Which of these three things do you think Sens. Grassley and Baucus did today? If you chose (C) Promote a Medicare payment fix and diss the folks across the aisle, you would be correct. The six-month reprieve for the formula-driven 10% Medicare physician pay cut (read all about it in earlier HealthBlawg posts here) is up at the end of this month, and the Senators are guest blogging about their dueling Medicare bills at AARP's SHAARPsession today, here and here. Either bill would address the physician payment issue, but of course would pay for the fix in different ways.