Former Congressman Barney Frank discusses Mick Mulvaney's leadership of the Consumer Financial Protection Bureau, which was established under the Dodd Frank Act. In an editorial earlier this week, Mulvaney criticized past leadership of the agency for "pushing the envelope" on financial over-regulation. Plus, William Banks, a professor at Syracuse University Law School, discusses Special Counsel Robert Mueller's investigation into Russian interference in the 2016 election. This week, reports emerged that prosecutors working for Mueller spoke with Attorney General Jeff Sessions, making him the first Trump cabinet official to be interviewed by Mueller. They speak with Bloomberg's June Grasso.