The only certainty about Trump-Kim summit is uncertainty

President Trump landed in Singapore’s on Sunday, hoping to replace the frostiness of the G-7 meeting by making history with one of the world’s most isolated dictators. On Tuesday, Trump will meet with North Korea's Kim Jong Un, who until six months ago had never met with a single foreign leader. NewsHour's Nick Schifrin, who is reporting from Singapore, joins Hari Sreenivasan with more.