Pence apologizes for bringing home classified documents: ‘I take full responsibility’

Former Vice President Pence has vowed full cooperation with the National Archives and Justice Department after turning over classified records from his Carmel, Indiana residence. MSNBC Legal Analyst Lisa Rubin and former senior advisor to the Secretary of State Daniella 

Ballou-Aares discuss what the discovery means for the Trump documents investigation and why efforts to reduce the volume of government secrets have fallen short.