reporter: good morning, alisyn. this is what the president does, stepping on his own message, distracting from his own agenda with often shocking side bars into dark places, including the conspiracy zone. it has become habitual behavior, on full display the last 24 hours. president trump in missouri touting what could be his first major legislative win. these massive tax cuts will be rocket fuel. reporter: but any traction is being overshadowed by wild stphultss, inflammatory tweets and long debunked conspiracy theories, raising questions about his competent. a source close says mr. trump is doubting his decision to acknowledge that president barack obama was born in the u.s. trump believing he would have done better if he continued to peddle his birther conspiracy.