'A seismic shift': Supreme Court Chevron ruling radically alters U.S. government with power grab

Sherrilyn Ifill, endowed chair in civil rights at Howard Law School, and Mark Joseph Stern, senior writer covering the courts for Slate Magazine, talk with Alex Wagner about the Supreme Court's overturning of the 1984 Chevron decision that has served as the basis for federal regulation in the United States, allowing federal agencies to fine tune the practical application of laws. The ruling delivers on a long-held goal of Republicans who champion industries that are resistant to being regulated.