Senator Elizabeth Warren's (D-Mass.) meeting with bank regulators Thursday left bankers reeling, after the politician questioned why regulators had not prosecuted a bank since the financial crisis.

At one point, Warren asked why big banks' book value was lower, when most corporations trade above book value, saying there could be only two reasons for it."*

Senator Elizabeth Warren slammed bank regulators by aggressively hammering one simple question: why have they not prosecuted a single bank since the financial crisis? Wall Street is reeling, perhaps they aren't enjoying someone finally treating them like the crooks they are?

Cenk Uygur and Ben Mankiewicz break it down.