"American Thinker" website does anything but think. I've read it for years, they ban those who comment in disagreement and point out their blatant falsehoods. The link you provided is a good case in point. 

Trump didn't "believe" the Kenya birth story in the first place. He just used it to pump up the rubes who followed him and his silly little reality show, and once he was in for a penny, he was in for the pound and couldn't back off. He never had "people" in Hawaii investigating it so much that "you wouldn't believe" what they're finding. Trump is a carnival barker and a fraudulent buffoon. The sooner his mesmerized fans realize they've been taken in, the better before this nation is utterly decimated by his incompetence and lack of vision.