Obama is one vote away from preventing Republicans from killing his Iran nuclear deal. Chris Hayes talks to former Senator George Mitchell about the scope of that deal and what it means for the rest of the world. watch
Now that presidential candidate Bernie Sanders is surging in Iowa and leading in New Hampshire, the Clinton camp is rolling out a big endorsement from New Hampshire Senator Jeanne Shaheen, who joins All In's Chris Hayes. watch
Each night, Chris Hayes partakes in lively conversations and debates with his guests. Hayes covers not only the biggest news stories of the day, but also the issues that are personally important to him including social justice and the environment.