Harvard Law School Constitutional Law Professor Laurence Tribe speaks to MSNBC's Ali Velshi about concrete steps Americans can take to push back against the Supreme Court decision granting Donald Trump immunity for official acts while in office. “We now have an imperial judiciary walking arm in arm with an imperial executive," Tribe warns. "And we need to take these things not as given just because the highest court in the land has said so, but as inconsistent with our aspirations to democracy
