Tuesday on the NewsHour, President Trump announces an agreement to denuclearize the Korean peninsula with few details. We get full analysis from U.S. senators and former State Department officials. Also: Russia's struggle to stop the virus from spreading and a AT&T-Time Warner merger gets the green light.

Thursday on the NewsHour, the Justice Department's watchdog finds former FBI Director James Comey "insubordinate," but doesn't find any evidence of political bias in the investigation into Hillary Clinton's email in 2016. Also: The city with the highest rate of new HIV cases in the U.S., New York sues the Trump Foundation, an import tax to make U.S. washing machines more competitive and more.