chaos. it's worth highlighting the extraordinary steps taken here by donald trump and his department of justice which not only in a very rare move opted not to defend obama care in the courts be, thank you spring agreed the entire law, all of it should be struck down. some people call medicare for all a radical and disruptive proposal on the left, but on the right republicans are pushing something that is as radical as those critics say in the opposite direction right now at this very moment. here to explain what's going on, massachusetts attorney general healy and nick bagley, a professor at the michigan law school who is part of an amicus brief last year in support of the aca. nick, let me start with you to set the context, and then i'll dom you, attorney general. the argument today happened in