IE 11 is not supported. For an optimal experience visit our site on another browser.

SCOTUS strikes down AZ voter ID law

07:09

The Supreme Court struck down a 2004 Arizona voter ID law, which required voters to show proof of citizenship when they register to vote. Meanwhile, Republican Arizona Governor Jan Brewer today signed into a law a Medicaid expansion. MSNBC's Alex Wagner discusses what these developments mean with MSNBC's Ari Melber and Joy Reid.