They like him because he’s an aggressive partisan legal warrior, strong background as a prosecutor, with significant personal insight into the administration’s preferred talking point, Hillary Clinton. Some of his past statements appear at odds with the President’s response to the impeachment inquiry, but generally Trump hasn’t ever held any consistent positions himself, so asking for a flip flop from his attorneys is all in line with expectations. Apparently Gowdy is married to a former beauty queen from South Carolina. She’s got some mileage on her but you can tell she was very attractive in her youth. I think that goes a long way with Trump.