Melissa Harris-Perry 01/03/16

Could one of Obama's biggest achievements be in trouble?

President Obama calls the Iran nuclear deal one of his administration's biggest accomplishments of the last year, but Iran's "October surprise" of ballistic missile tests could mean the achievement is in trouble. Joy Reid, Raul Reyes, Gian-Carlo Peressutti and Aimee Meredith Cox join to discuss. ... more Duration: {{video.duration.momentjs}}