PBS NewsHour - Season 46 Episode 136

Friday on the NewsHour, new details about the assassination of Haiti's president raise big questions about who killed Jovenel Moïse and who will succeed him. Then, a critical vote in the U.N, Security Council decides the fate of Syria's last humanitarian lifeline. David Brooks and Karen Tumulty examine the week in politics, and how this year's Scripps National Spelling Bee winner made history.