Jeffrey Toobin & Alan Dershowitz on the Manafort Trial

As Paul Manafort pleads guilty, we explore uncharted, unsettled legal questions about a sitting president and the law. Veteran professor Alan Dershowtiz questions whether there should even be a special counsel, while his former student Jeffrey Toobin -- who served on the special prosecutor’s investigation of the Iran-Contra affair -- says the investigation is the best way to ferret out the truth.