CNN's Chris Cuomo examines excerpts from Tim Alberta's new book "American Carnage" in which former House Speaker Paul Ryan says President Trump "didn't know anything about government."

WASHINGTON, DC - JUNE 21: U.S. Speaker of the House Rep. Paul Ryan (R-WI) delivers remarks during his weekly press conference on June 21, 2018 in Washington, DC.

(Photo by Toya Sarno Jordan/Getty Images)