Mark Grimaldi, Executive Producer of The Leslie Marshall Show, guest hosts for Leslie during this interview.

He's joined by Nicholas Wapshott, the Opinion Editor of Newsweek and an author.

They discuss multiple aspects of the Democratic primaries that include:

-What the impacts would be of Bernie Sanders winning the California primary
-Previewing the Democratic National Convention in July and what it might look like
-What goals Bernie Sanders has already achieved, and what else he might be looking for from Hillary Clinton before he agrees to support her for President

Nicholas Wapshott's newest book is titled "The Sphinx: Franklin Roosevelt, the Isolationists, and the Road to World War II." (The book is available at www.wwnorton.com/books and Amazon.com).

Nicholas's Twitter handle is @NWapshott and Mark's is @MarkJGrimaldi.

(Image Credit: Caitlin Faw / Associated Press)