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Other attendees include Sens. Kelly AyotteKelly AyotteLewandowski saw no evidence of voter fraud in New Hampshire NH governor 'not aware’ of major voter fraud Former NH AG: 'Allegations of voter fraud in NH are baseless' MORE (R-N.H.), Lindsey GrahamLindsey GrahamCNN to host town hall featuring John McCain, Lindsey Graham Club for Growth launches ad targeting GOP tax writer Dem senator asks for 'top to bottom' review of Syria policy MORE (R-S.C.), Sheldon WhitehouseSheldon WhitehouseA guide to the committees: Senate Pruitt confirmation sets stage for Trump EPA assault Senate Dems ask DHS inspector general for probe of Trump’s business arrangement 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."