Republican presidential nominee Donald Trump is greeted by his family on stage after the third presidential debate at UNLV. (Mark Ralston/AP)
Hillary Clinton walks pastDonald Trump to shake hands with Moderator Chris Wallace, of FOX News, at the end of the third presidential debate at UNLV. (Julio Cortez/AP)
Republican presidential nominee Donald Trump shakes hands with moderator Chris Wallace, of FOX News, after the third presidential debate at UNLV. (Mark Ralston/AP)
Democratic presidential nominee Hillary Clinton and Republican presidential nominee Donald Trump debate during the third presidential debate at UNLV. (Mark Ralston/AP)
Hillary Clinton debates with Donald Trump during the third presidential debate at UNLV. (Mark Ralston/AP)
Republican presidential nominee Donald Trump listens to Democratic presidential nominee Hillary Clinton during the third presidential debate at UNLV. (Patrick Semansky/AP)
Hillary Clinton and Donald Trump take the stage for the third presidential debate at University of Nevada in Las Vegas. (Andrew Harnik/AP)
Hillary Clinton and Donald Trump listen to a question from Moderator Chris Wallace of FOX News during the third presidential debate at UNLV. (Joe Raedle/AP Photo)
Moderator Chris Wallace of FOX News guides the discussion between Hillary Clinton and Donald Trump during the third presidential debate at UNLV. (Joe Raedle/AP)
Republican presidential nominee Donald Trump speaks to Democratic presidential nominee Hillary Clinton during the third presidential debate at UNLV. (David Goldman/AP Photo)
Democratic presidential nominee Hillary Clinton answers a question during the third presidential debate at UNLV. (John Locher/AP Photo)
Democratic presidential nominee Hillary Clinton arrives with Republican presidential nominee Donald Trump for the third presidential debate at UNLV. (David Goldman/AP Photo)
Hillary Clinton and Donald Trump take the stage for the third presidential debate at University of Nevada in Las Vegas. (Andrew Harnik/AP)
Ted Danson and Mary Steenburgen sit in the audience before the third presidential debate at UNLV. (Joe Raedle/AP Photo)
Former President Bill Clinton, right, his daughter Chelsea Clinton, center, and her husband Marc Mezvinsky, left, sit in the audience before the third presidential debate at UNLV. (Andrew Harnik/AP Photo)
Former President Bill Clinton, right, speaks to his daughter Chelsea Clinton, left, before the third presidential debate at UNLV. (Andrew Harnik/AP Photo)
Melania Trump, wife of Donald Trump greets Republican vice-presidential nominee Gov. Mike Pence before the third presidential debate at UNLV. (John Locher/AP Photo)
Melania Trump sits after arriving for the third presidential debate at UNLV. (Evan Vucci/AP Photo)
Donald Trump's sons Eric, right and Donald Jr. wait for the third debate at UNLV. (David Goldman/AP Photo)
Former NBA star Kareem Abdul-Jabbar poses for a photo with Jesse Jackson, Jr., before the third presidential debate at UNLV (John Locher/AP Photo)
Entertainer Wayne Newton sits with his wife Kathleen McCrone before the third presidential debate at UNLV. (David Goldman/AP Photo)
Jesse Jackson shakes hands with entrepreneur Mark Cuban before the third presidential debate at UNLV. (David Goldman/AP Photo)
Presidential candidates Hillary Clinton and Donald Trump faced off for the last time at University of Nevada, Las Vegas on Wednesday, Oct. 19, 2016.