Leading up to this week’s revote on a cut in reimbursements to Medicare doctors, Senate Minority Leader Mitch McConnell (R-Ky.) and Sen. Roger Wicker (R-Miss.) will be feeling some additional heat. A liberal organization, Americans United for Change, is up in their respective states with ads hitting them for their no votes.

“He could have voted to block the slush fund of tax dollars flowing to private insurance companies — overpayments that will cost taxpayers $150 billion over the next decade,” intones the ad. “Instead, Sen. McConnell sided with President Bush and big insurance companies who want to keep raking in giant subsidies.”

Jeremy Funk of AUC says that the ad will be up on the top four to five radio stations in the four markets that cover their states, at a total cost of just under $20,000 – not much in the grand scheme, but that buys a lot of one-day radio air time.