Democratic presidential nominee Hillary Clinton arrives at a campaign rally in Cincinnati on Monday, October 31. Andrew Harnik/AP

Wisconsin Gov. Scott Walker winks after introducing Republican presidential nominee Donald Trump at a campaign rally in Eau Claire, Wisconsin, on Tuesday, November 1. Evan Vucci/AP

A golfer aims at photos of Hillary Clinton and Donald Trump at a driving range in Longview, Texas, on Monday, October 31. Les Hassell/AP

Former US President Bill Clinton pretends to cut D.J. Anderson's hair as he visits a Las Vegas barbershop on Thursday, November 3. Clinton was campaigning for his wife. Ethan Miller/Getty Images

Donald Trump speaks at a rally in Pensacola, Florida, on Wednesday, November 2. David Hume Kennerly for CNN

Musician Pharrell Williams takes a selfie with Hillary Clinton before a campaign rally in Raleigh, North Carolina, on Thursday, November 3. JEWEL SAMAD/AFP/Getty Images

Members of the Secret Service rush Republican presidential candidate Donald Trump off the stage at a campaign rally in Reno, Nevada, on Saturday, November 5. John Locher/AP

Matthew and Birgit Peterson, celebrating their second wedding anniversary, dress up as former US President Abraham Lincoln and first lady Mary Todd Lincoln during a Donald Trump campaign rally in Grand Rapids, Michigan, on Monday, October 31. Chip Somodevilla/Getty Images

Hillary Clinton watches Game 7 of the World Series after her campaign rally in Tempe, Arizona, on Wednesday, November 2. Andrew Harnik/AP

A police officer in New Orleans tries to keep protesters outside a debate venue at Dillard University on Wednesday, November 2. People were protesting David Duke, a Senate candidate and former Ku Klux Klan leader who was participating in the debate at the historically black college. Gerald Herbert/AP

A supporter of Republican presidential candidate Donald Trump, lower right, interrupts President Barack Obama's speech at Fayetteville State University on Friday, November 4, in Fayetteville, North Carolina, during a campaign rally for Democratic presidential candidate Hillary Clinton. Pablo Martinez Monsivais/AP

Donald Trump's campaign manager, Kellyanne Conway, speaks to the media at a Trump rally in Berwyn, Pennsylvania, on Thursday, November 3. Leigh Vogel/WireImage/Getty Images

Donald Trump's wife, Melania, walks on stage to deliver a speech in Berwyn, Pennsylvania, on Thursday, November 3. She said that if she became first lady, she'd work to improve a social media culture that has gotten "too mean and too tough" -- riddled with insults based on "looks and intelligence." Patrick Semansky/AP

A woman becomes excited as she meets Hillary Clinton for a backstage photo in Tempe, Arizona, on Wednesday, November 2. Andrew Harnik/AP

Police are investigating the burning of a black church in Greenville, Mississippi, that had "Vote Trump" spray-painted on its wall on Tuesday, November 1. No one was in the building, said Carilyn Hudson, pastor of the Hopewell Baptist Church. Rogelio V. Solis/AP

Donald Trump speaks during a campaign rally in Eau Claire, Wisconsin, on Tuesday, November 1. Evan Vucci/AP

A person in a Hillary Clinton mask holds an effigy of Donald Trump before a Clinton campaign event in Tempe, Arizona, on Wednesday, November 2. Daniel Acker/Bloomberg/Getty Images

Democratic presidential candidate Hillary Clinton appears on stage with artists Jay Z, right, and Beyonce, left, during a free concert Friday, November 4, at at the Wolstein Center in Cleveland. Andrew Harnik/AP

A cardboard standup of Donald Trump is seen through a broken window at the headquarters of the Bay County Republican Party in Panama City, Florida, on Wednesday, November 2. Someone had shattered the glass with a rock a couple of days earlier. Andrew Wardlow/AP