WaPo's David Fahrenthold has been breaking news on Donald Trump's charitable foundation for months now. His latest story -- about how Trump didn't fill out the proper forms to have a charity based in New York -- caught the eye of the Empire State's top cop today. I got the chance to sit down with Dave via Facebook Live and ask him all of the questions I had about both the story and his reporting on it.

Our conversation is below. And, if you missed my Q and A with Dave, check it out here.