NBCUniversal Inc. January 8, 2019 2:33 am Chris Hayes Says Trump Doesn't Understand the Government Shutdown's Consequences Chris Hayes talks to Seth Meyers about how President Donald Trump’s border wall is just a mnemonic and expresses his frustration about the ongoing shutdown. US & World Videos 2:43 ‘On the Dot' to redevelop stretch of Dorchester Avenue 1:49 Finalists in math competition hope their model helps ease housing crisis 14:31 @Issue extra: Seth Moulton on pro-Palestinian protests, TikTok and more 2:31 Celtics preparing for pivotal Game 3 against Heat in Miami 1:17 Patriots player visits Franciscan Children's Hospital