Dr. Brian P. Monahan has been thrust into the center of a political controversy as Senator Mitch McConnell, the minority leader, seeks to dismiss concerns about his age and health.
With the Senate returning from its long summer recess, the minority leader circulated a note from the congressional doctor saying an examination and tests showed no signs of a stroke or seizure.
The brief statement came from the attending physician of Congress, who said he had reached the conclusion after consulting with the top Republican’s doctors and didn’t say he had examined the senator.