Here is the link. The interview, conducted by Fabrizio di Piazza, was recorded before Justice Scalia passed away.  Here is the description:

In this four-part interview, Richard Hasen discusses understanding the Supreme Court, especially through election law and the problem of money in politics. Hasen is the Chancellor’s Professor of Law and Political Science at the University of California, Irvine School of Law, and author of the new book, Plutocrats United: Campaign Money, the Supreme Court, and the Distortion of American Elections.