Wednesday on the NewsHour, questions mount as President Trump returns to Washington declaring North Korea no longer a nuclear threat. Also: A push to take back rebel strongholds in Yemen, the winners in Tuesday's primaries, a look at AIDS in Nigeria, failed efforts to stop sexual harassment in science and states step in to help workers save for retirement.

Friday on the NewsHour, President Trump gives a wide-ranging impromptu interview, putting the GOP's immigration compromise bill in question. Also: Inside a children's migrant center in San Diego, two North Korean defectors discuss Trump's dealing with Kim Jong Un, beating back the AIDS epidemic in the South, a sexual abuse scandal shakes Chile's Catholic Church, plus Shields and Brooks.