One of the unwritten rules in a presidential news conference is that he'll answer questions. If he chooses not to, there's not much you can do about it other than make yourself look like an idiot screaming, which to me is counterproductive.
Gwen IfillWe needed someone to recognize the importance of check and balances, accountability, transparency. There was a real systemic problem at South Carolina State, a problem that has gone on for 25 or 30 years
Gwen Ifill