Supporters of U.S. Democratic presidential nominee Hillary Clinton watch returns at her election night rally in Manhattan, New York, U.S., November 8, 2016. REUTERS/Shannon Stapleton

Supporters of Democratic presidential nominee Hillary Clinton watch and wait at her election night rally in New York, U.S., November 8, 2016. REUTERS/Carlos Barria

Trump supporters embrace as they watch election returns come in at Republican U.S. presidential nominee Donald Trump's election night rally in Manhattan, New York, U.S., November 8, 2016. REUTERS/Mike Segar

Supporters of U.S. Democratic presidential nominee Hillary Clinton attend her election night rally in Manhattan, New York, U.S., November 8, 2016. REUTERS/Shannon Stapleton

A Trump supporter celebrates as election returns come in at Republican U.S. presidential nominee Donald Trump's election night rally in Manhattan, New York, U.S., November 8, 2016. REUTERS/Jonathan Ernst

Supporters of U.S. Democratic presidential nominee Hillary Clinton react at her election night rally in Manhattan, New York, U.S., November 8, 2016. REUTERS/Shannon Stapleton

Lyn Thrasher (front L) and her daughter Marley Thrasher react to a stream of news showing a surge by Republican presidential nominee Donald Trump in the national contest at Republican Governor Pat McCrory's election-night party in Raleigh, North Carolina, U.S. November 8, 2016. REUTERS/Jonathan Drake

Supporters of Democratic presidential nominee Hillary Clinton watch and wait at her election night rally in New York, U.S., November 8, 2016. REUTERS/Carlos Barria

Supporters of Republican presidential candidate Donald Trump rally in front of the White House in Washington, U.S. November 9, 2016. REUTERS/Joshua Roberts

U.S. Democratic presidential nominee Hillary Clinton's campaign chairman John Podesta addresses supporters at the election night rally in New York, New York, November 8, 2016. REUTERS/Rick Wilking

Republican U.S. presidential nominee Donald Trump is accompanied by members of his family as he arrives to address supporters at his election night rally in Manhattan, New York, U.S., November 9, 2016. REUTERS/Brendan McDermid

Republican U.S. presidential nominee Donald Trump gestures as he arrives with his wife Melania (R) to address supporters at his election night rally in Manhattan, New York, U.S., November 9, 2016. REUTERS/Jonathan Ernst

U.S. President elect Donald Trump supporters kiss at election night rally in Manhattan, New York, U.S., November 9, 2016. REUTERS/Jonathan Ernst

People visit the grave of women's suffrage leader Susan B. Anthony on U.S. election day at Mount Hope Cemetery in Rochester, New York November 8, 2016. REUTERS/Adam Fenster

Republican presidential nominee Donald Trump and his wife Melania Trump vote at PS 59 in New York, New York, U.S. November 8, 2016. REUTERS/Carlo Allegri

Grace Bell Hardison, a 100-year-old woman recently mentioned by President Barack Obama after attempts were made to purge her from the voter registration list and hence deny her right to vote, receives an "I Voted Today" sticker from election official Elaine Hudnell after she cast her ballot in the U.S. general election from a car in Belhaven, North Carolina, U.S. on November 8, 2016. REUTERS/Jonathan Drake TPX IMAGES OF THE DAY

A voter casts his ballot inside the garage of Chobert Decorators during the U.S. presidential election in Philadelphia, Pennsylvania, U.S. November 8, 2016. REUTERS/Charles Mostoller TPX IMAGES OF THE DAY

Children watch their mother vote during the U.S. general election in Greenville, North Carolina, U.S. on November 8, 2016. REUTERS/Jonathan Drake

A Secret Service agent waits for Republican presidential nominee Donald Trump to appear during a during a campaign event in King of Prussia, Pennsylvania U.S. November 1, 2016. REUTERS/Carlo Allegri TPX IMAGES OF THE DAY

U.S. Democratic presidential nominee Hillary Clinton acknowledges the crowd at a campaign rally in Ft. Lauderdale, Florida, U.S. November 1, 2016. REUTERS/Brian Snyder TPX IMAGES OF THE DAY

U.S. Democratic presidential nominee Hillary Clinton holds a Halloween mask while joking with her staff on her campaign plane in Erlanger, Kentucky, U.S. October 31, 2016. REUTERS/Brian Snyder TPX IMAGES OF THE DAY

A supporter of U.S. Republican presidential nominee Donald Trump dressed in costume appears at campaign rally in Grand Rapids, Michigan, U.S., October 31, 2016. REUTERS/Carlo Allegri TPX IMAGES OF THE DAY

U.S. Democratic presidential nominee Hillary Clinton speaks about the FBI inquiry into her emails during a campaign rally in Daytona Beach, Florida, U.S. October 29, 2016. REUTERS/Brian Snyder TPX IMAGES OF THE DAY

U.S. Democratic presidential nominee Hillary Clinton talks to staff members, including aide Huma Abedin (L), onboard her campaign plane in White Plains, New York, U.S. October 28, 2016. REUTERS/Brian Snyder TPX IMAGES OF THE DAY

Republican presidential nominee Donald Trump appears at a campaign event in Toledo, Ohio, U.S., October 27 2016. REUTERS/Carlo Allegri

U.S. first lady Michelle Obama embraces U.S. Democratic presidential candidate Hillary Clinton as they arrive at a campaign rally in Winston-Salem, North Carolina, U.S., October 27, 2016. REUTERS/Carlos Barria TPX IMAGES OF THE DAY

Supporters touch U.S. first lady Michelle Obama hand after she delivers a speech during a campaign rally in support of U.S. Democratic presidential nominee Hillary Clinton in Winston-Salem, North Carolina, U.S., October 27, 2016. REUTERS/Carlos Barria

U.S. Democratic presidential candidate Hillary Clinton reacts as she boards her campaign plane at Miami international airport in Miami, Florida, U.S., October 26, 2016. REUTERS/Carlos Barria

Women hold up signs as they surround Robert Burck, known as the original "Naked Cowboy" who is a supporter of Republican U.S. presidential nominee Donald Trump as they protest against Trump during a demonstration organized by the National Organization for Women (NOW) outside Trump Tower in the Manhattan borough of New York City, October 26, 2016. REUTERS/Mike Segar TPX IMAGES OF THE DAY

Donald Trump's star on the Hollywood Walk of Fame is seen after it was vandalized in Los Angeles, California U.S., October 26, 2016. REUTERS/Mario Anzuoni TPX IMAGES OF THE DAY

Republican U.S. presidential nominee Donald Trump meets with law enforcement and first responders at the St. Johns County Sheriff's Department in St. Augustine, Florida, U.S. October 24, 2016. REUTERS/Jonathan Ernst

Republican U.S. presidential nominee Donald Trump (bottom row, in reflection) is reflected in the portraits of Bay of Pigs veterans as he visits the Bay of Pigs Museum to receive the endorsement of their veterans association in Miami, Florida, U.S. October 25, 2016. REUTERS/Jonathan Ernst TPX IMAGES OF THE DAY

Former New York mayor Rudy Giuliani (R) says a few words of support for Republican U.S. presidential nominee Donald Trump (L) at a campaign rally in Naples, Florida, U.S. October 23, 2016. REUTERS/Jonathan Ernst TPX IMAGES OF THE DAY

Republican U.S. presidential nominee Donald Trump wipes his eyes as he participates in a round-table discussion with farmers at a farm market in Boynton Beach, Florida, U.S. October 24, 2016. REUTERS/Jonathan Ernst

Democratic U.S. presidential nominee Hillary Clinton waves as she arrives to a campaign event accompanied by U.S. Senator Elizabeth Warren (D-MA) at Alumni Hall Courtyard, Saint Anselm College in Manchester, New Hampshire U.S., October 24, 2016. REUTERS/Carlos Barria TPX IMAGES OF THE DAY

Republican U.S. presidential nominee Donald Trump meets with law enforcement and first responders at the St. Johns County Sheriff's Department in St. Augustine, Florida, U.S. October 24, 2016. REUTERS/Jonathan Ernst

Democratic U.S. presidential nominee Hillary Clinton reacts as she attends a campaign rally at Alumni Hall Courtyard, Saint Anselm College in Manchester, New Hampshire U.S., October 24, 2016. REUTERS/Carlos Barria

A man wears a t-shirt of Hillary Clinton behind bars as he eats a sandwich at a rally with Republican U.S. presidential nominee Donald Trump in St. Augustine, Florida, U.S. October 24, 2016. REUTERS/Jonathan Ernst

Republican U.S. presidential nominee Donald Trump hugs a U.S. flag as he comes onstage to rally with supporters in Tampa, Florida, U.S. October 24, 2016. REUTERS/Jonathan Ernst

Supporters of U.S. Democratic presidential nominee Hillary Clinton take part in a march through the Brooklyn bridge in New York, U.S. October 22, 2016. REUTERS/Eduardo Munoz TPX IMAGES OF THE DAY

Democratic U.S. presidential nominee Hillary Clinton (R) reacts to a joke by Republican U.S. presidential nominee Donald Trump (L) at the Alfred E. Smith Memorial Foundation dinner in New York, U.S. October 20, 2016. REUTERS/Jonathan Ernst TPX IMAGES OF THE DAY

U.S. Democratic presidential nominee Hillary Clinton arrives at Burke Lakefront airport in Cleveland, Ohio U.S., October 21, 2016. REUTERS/Carlos Barria

Ivanka Trump, daughter of Republican U.S. presidential nominee Donald Trump, awaits the the start of the third and final debate between her father and Democratic nominee Hillary Clinton at UNLV in Las Vegas, Nevada, U.S., October 19, 2016. REUTERS/Carlos Barria

Republican U.S. presidential nominee Donald Trump and Democratic U.S. presidential nominee Hillary Clinton finish their third and final 2016 presidential campaign debate at UNLV in Las Vegas, Nevada, U.S., October 19, 2016. REUTERS/Mike Blake TPX IMAGES OF THE DAY

A man wears a mask depicting Democratic U.S. presidential candidate Hillary Clinton while holding a doll depicting Republican presidential nominee Donald Trump in Phoenix, Arizona October 20, 2016. REUTERS/Ricardo Arduengo TPX IMAGES OF THE DAY

U.S. Republican presidential nominee Donald Trump's campaign plane (rear) passes U.S. Democratic presidential nominee Hillary Clinton's campaign plane as it lands in Las Vegas, Nevada, U.S. October 18, 2016. REUTERS/Lucy Nicholson TPX IMAGES OF THE DAY

Summer Zervos, a former contestant on the TV show The Apprentice, is embraced by lawyer Gloria Allred (L) while speaking about allegations of sexual misconduct against Donald Trump during a news conference in Los Angeles, California, U.S. October 14, 2016. REUTERS/Kevork Djansezian TPX IMAGES OF THE DAY

Huma Abedin, aide to U.S. Democratic presidential nominee Hillary Clinton, walks off the campaign plane in Las Vegas, Nevada, U.S. October 12, 2016. REUTERS/Lucy Nicholson

Republican U.S. presidential nominee Donald Trump listens as Democratic nominee Hillary Clinton answers a question from the audience during their presidential town hall debate at Washington University in St. Louis, Missouri, U.S., October 9, 2016. REUTERS/Rick Wilking

Republican presidential nominee Donald Trump waves to supporters outside the front door of Trump Tower where he lives in the Manhattan borough of New York, U.S., October 8, 2016. REUTERS/Mike Segar TPX IMAGES OF THE DAY

Nine-year-old Belle Shefrin holds a doll of U.S. Democratic presidential nominee Hillary Clinton while listening to Clinton speak at a campaign rally in Akron, Ohio, U.S., October 3, 2016. REUTERS/Brian Snyder TPX IMAGES OF THE DAY

Republican presidential nominee Donald Trump views a replica of the Oval Office on a tour of the Gerald Ford Presidential Museum in Grand Rapids, Michigan, U.S. September 30, 2016. REUTERS/Jonathan Ernst

A journalist records a video from screen as Republican U.S. presidential nominee Donald Trump speaks during the first presidential debate with U.S. Democratic presidential candidate Hillary Clinton at Hofstra University in Hempstead, New York, U.S., September 26, 2016. REUTERS/Carlos Barria

Republican presidential nominee Donald Trump supporters drive past the U.S. Democratic presidential candidate Hillary Clinton motorcade as she leaves a fundraiser event in Orlando, U.S. September 21, 2016. REUTERS/Carlos Barria

U.S. Democratic presidential candidate Hillary Clinton arrives to a press briefing before boarding her campaign plane at the Westchester County airport in White Plains, New York, U.S. September 19, 2016. REUTERS/Carlos Barria

U.S. Democratic presidential candidate Hillary Clinton waves as she arrives to speak at Temple University in Philadelphia, Pennsylvania, U.S. September 19, 2016. REUTERS/Carlos Barria

Democratic nominee Hillary Clinton looks at her mobile phone as she leaves her house to attend Congressional Black Caucus Foundation's Phoenix Awards Dinner at the Washington convention center in Washington, U.S., September 17, 2016. REUTERS/Carlos Barria TPX IMAGES OF THE DAY

Democratic nominee Hillary Clinton's campaign plane flies over New York city, U.S., September 16, 2016. REUTERS/Carlos Barria

U.S. Democratic presidential candidate Hillary Clinton leaves ceremonies marking the 15th anniversary of the September 11 attacks at the National 9/11 Memorial in New York, New York, United States September 11, 2016. REUTERS/Brian Snyder TPX IMAGES OF THE DAY

Republican presidential nominee Donald Trump stands on a chair to speak to people in an overflow area after a campaign rally in Greenville, North Carolina, U.S., September 6, 2016. REUTERS/Mike Segar TPX IMAGES OF THE DAY