Correction Appended

Updated: July 6, 10:56 p.m.

Correction: July 7, 2010

The article incorrectly reported one of the participants in a Senate floor colloquy in May criticizing the record of Donald Berwick, who was nominated to run the Centers for Medicare and Medicaid Services. The colloquy included Sens. Mitch McConnell (R-Ky.), Pat Roberts (R-Kan.) and John Barrasso (R-Wyo.).