Monday on the NewsHour, a look at what's as President Trump prepares to meet with North Korea's leader Kim Jong Un. Also: Fallout from the G-7 summit, the global fight against the HIV epidemic, the political stakes of a Supreme Court decision on purging voter rolls and the argument for traveling alone.

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.