Republican presidential candidate Dr. Ben Carson speaks during a news conference about health care issues on Oct. 2 in Ankeny, Iowa.
Republican presidential candidate Dr. Ben Carson speaks during a news conference about health care issues on Oct. 2 in Ankeny, Iowa. Charlie Neibergall AP
Republican presidential candidate Dr. Ben Carson speaks during a news conference about health care issues on Oct. 2 in Ankeny, Iowa. Charlie Neibergall AP