
In a statement, the senator said his Parkinson's disease was progressing. "I will not be able to do the job over the long term in the manner the citizens of Georgia deserve," Isakson said.
(Image credit: J. Scott Applewhite/AP)

In a statement, the senator said his Parkinson's disease was progressing. "I will not be able to do the job over the long term in the manner the citizens of Georgia deserve," Isakson said.
(Image credit: J. Scott Applewhite/AP)