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Other attendees include Sens. Kelly AyotteKelly Ann AyotteHeitkamp ad highlights record as Senate race heats up Ernst, Fischer to square off for leadership post The Hill's Morning Report: Koch Network re-evaluating midterm strategy amid frustrations with GOP MORE (R-N.H.), Lindsey GrahamLindsey Olin GrahamSenate panel advances three spending bills Trump says he will sign executive order to end family separations Trump backs narrow bill halting family separations: official MORE (R-S.C.), Sheldon WhitehouseSheldon Whitehouse6 months in, GOP tax bill an utter flop Live coverage: FBI chief, Justice IG testify on critical report GAO to look into Trump's reduction of carbon social costs MORE (D-R.I.), former Sens. Jon Kyl (R-Ariz.) and Joe Lieberman (I-Conn.), as well as NBA star Dikembe Mutombo and Wal-Mart President Bill Simon.

It is the second year of the annual forum. In 2012, former CIA Director David Petraeus and actor Ben Affleck headlined the event.

According to organizers, the discussion will be focused around the topic, "How Can We Promote Freedom and Democracy Effectively?"

"We at Arizona State University are proud to have Vice President Biden and so many other distinguished leaders involved with the McCain Institute," said Arizona State University President Michael Crow in a statement. "Their participation in the Sedona Forum ensures a thought-provoking weekend."