Getting your Trinity Audio player ready...
Bob Caughey has been diagnosed with aphasia, a condition that makes speaking difficult.
Bob Caughey, diagnosed with aphasia
Anthony Souffle / Chicago Tribune
Bob Caughey walks though a pasture with his wife, Linda, as he calls out to his border collie, Cookie, after moving a flock of sheep from one pasture to another on Oct. 20, 2016, at their Pontiac home. He has been diagnosed with primary progressive aphasia, which makes speaking very difficult. 
