Does this sound like a man with a bad earpiece or someone who is a pathological liar?

Photo credit:  Gage Skidmore via Wikipedia

Donald Trump stumbles on David Duke, KKK.  (CNN, 2/29/2016)

He clearly understood the question.

Then the Presidential candidate with the emotional development of a 12 year old comes up with this stupendously lame excuse.

USA Today, 2/29/2016

Related post:
Presidential candidate with emotional development of 12 year old wings it.  (2/29/2016)