Cassandra Maxwell, a supporter of U.S. presidential candidate Joe Biden and Vice President Kamala Harris, volunteers handing out pamphlets in Detroit, Michigan, U.S., October 29, 2020. REUTERS/Shannon Stapleton

A billboard advertising to 'Vote In Person' is seen as a patrol car for the Detroit Police Department pulls a car over as traffic drives by in Detroit, Michigan, U.S., October 29, 2020. Picture taken with a slow shutter speed. REUTERS/Shannon Stapleton

Emergency responders work at the scene of a collapsed crane in the midtown area of Manhattan, New York City, New York, U.S., October 29, 2020. REUTERS/Eduardo Munoz

A collapsed crane is seen in the midtown area of Manhattan, New York City, New York, U.S., October 29, 2020. REUTERS/Eduardo Munoz

Emergency responders work at the scene of a collapsed crane in the midtown area of Manhattan, New York City, New York, U.S., October 29, 2020. REUTERS/Eduardo Munoz

Debris from a collapsed crane is seen in the street in the midtown area of Manhattan, New York City, New York, U.S., October 29, 2020. REUTERS/Eduardo Munoz

Cassandra Maxwell, a supporter of Democratic presidential candidate and former Vice President Joe Biden and U.S. Senator and Democratic candidate for Vice President Kamala Harris, volunteers handing out pamphlets in Detroit, Michigan, U.S., October 29, 2020. REUTERS/Shannon Stapleton

People walk near the scene of debris from a collapsed crane in the midtown area of Manhattan, New York City, New York, U.S., October 29, 2020. REUTERS/Eduardo Munoz

Medical workers in protective suits rest after hours of treating patients suffering from the coronavirus disease (COVID-19) in an intensive care unit at Hospital Juarez de Mexico in Mexico City, Mexico October 29, 2020. REUTERS/Carlos Jasso

People move pictures of Cuban singer Omara Portuondo during her 90th birthday party in Havana, Cuba, October 29, 2020. REUTERS/Alexandre Meneghini

A medical worker in protective suit rests after hours of treating patients suffering from the coronavirus disease (COVID-19) in an intensive care unit at Hospital Juarez de Mexico in Mexico City, Mexico October 29, 2020. REUTERS/Carlos Jasso

Cuban singer Omara Portuondo is seen during her 90th birthday party in Havana, Cuba, October 29, 2020. REUTERS/Alexandre Meneghini

Mouffetard street is pictured as the national lockdown starts as part of the COVID-19 measures to fight a second wave of the coronavirus disease (COVID-19), in Paris, France, October 30, 2020. REUTERS/Christian Hartmann

A medical worker in protective suit treats a patient suffering from the coronavirus disease (COVID-19) in an intensive care unit at Hospital Juarez de Mexico in Mexico City, Mexico October 29, 2020. REUTERS/Carlos Jasso

Cuban singer Omara Portuondo looks on during her 90th birthday party in Havana, Cuba, October 29, 2020. REUTERS/Alexandre Meneghini

Medical workers in protective suits treat a patient suffering from the coronavirus disease (COVID-19) in an intensive care unit while a nurse takes pictures, at Hospital Juarez de Mexico in Mexico City, Mexico October 29, 2020. REUTERS/Carlos Jasso

The entrance of the intensive care unit where patients suffering from the coronavirus disease (COVID-19) are treated is pictured at Hospital Juarez de Mexico in Mexico City, Mexico October 29, 2020. REUTERS/Carlos Jasso

Medical workers in protective suits stand outside the intensive care unit where patients suffering from the coronavirus disease (COVID-19) are treated, at Hospital Juarez de Mexico in Mexico City, Mexico October 29, 2020. REUTERS/Carlos Jasso

Medical workers in protective suits rest after hours of treating patients suffering from the coronavirus disease (COVID-19) in an intensive care unit at Hospital Juarez de Mexico in Mexico City, Mexico October 29, 2020. REUTERS/Carlos Jasso

Mouffetard street is pictured as the national lockdown starts as part of the COVID-19 measures to fight a second wave of the coronavirus disease (COVID-19), in Paris, France, October 30, 2020. REUTERS/Christian Hartmann

A patient suffering from the coronavirus disease (COVID-19) is being treated with ice to control his temperature in an intensive care at Hospital Juarez de Mexico in Mexico City, Mexico October 29, 2020. REUTERS/Carlos Jasso

Medical workers in protective suits treat a patient suffering from the coronavirus disease (COVID-19) in an intensive care unit at Hospital Juarez de Mexico in Mexico City,, Mexico October 29, 2020. REUTERS/Carlos Jasso

Cuban singer Omara Portuondo arrives for her 90th birthday party in Havana, Cuba, October 29, 2020. REUTERS/Alexandre Meneghini

Democratic U.S. presidential nominee and former Vice President Joe Biden greets suporters at a drive-in, Get Out the Vote campaign stop in Tampa, Florida, U.S., October 29, 2020. REUTERS/Brian Snyder

The deserted Place de la Contrescarpe is pictured as the national lockdown starts as part of the COVID-19 measures to fight a second wave of the coronavirus disease (COVID-19), in Paris, France, October 30, 2020. REUTERS/Christian Hartmann

Federal forces guard the perimeter of a site where local authorities work to retrieve bodies from clandestine graves, in Salvatierra, Guanajuato state, Mexico October 29, 2020. REUTERS/Sergio Maldonado

A thermal imaging camera is seen in front of a logo of Ant Group at the headquarters of Ant Group, an affiliate of Alibaba, in Hangzhou, Zhejiang province, China October 29, 2020. Picture taken October 29, 2020. REUTERS/Aly Song

Employees work at an office at the headquarters of Ant Group, an affiliate of Alibaba, in Hangzhou, Zhejiang province, China October 29, 2020. Picture taken October 29, 2020. REUTERS/Aly Song

A logo of Ant Group is pictured at the headquarters of Ant Group, an affiliate of Alibaba, in Hangzhou, Zhejiang province, China October 29, 2020. Picture taken October 29, 2020. REUTERS/Aly Song

Federal forces guard the perimeter of a site where local authorities work to retrieve bodies from clandestine graves, in Salvatierra, Guanajuato state, Mexico October 29, 2020. REUTERS/Sergio Maldonado

A woman with a missing son (L) talks to police agents after knowing of the authorities working at a site to retrieve bodies from clandestine graves, in Salvatierra, Guanajuato state, Mexico October 29, 2020. REUTERS/Sergio Maldonado

A view shows the deserted Ile Saint Louis as the national lockdown starts as part of the COVID-19 measures to fight a second wave of the coronavirus disease (COVID-19), in Paris, France, October 30, 2020. REUTERS/Christian Hartmann

A view shows the deserted Ile Saint Louis as the national lockdown starts as part of the COVID-19 measures to fight a second wave of the coronavirus disease (COVID-19), in Paris, France, October 30, 2020. REUTERS/Christian Hartmann

A view shows the deserted Ile Saint Louis as the national lockdown starts as part of the COVID-19 measures to fight a second wave of the coronavirus disease (COVID-19), in Paris, France, October 30, 2020. REUTERS/Christian Hartmann

Federal forces guard the perimeter of a site where local authorities work to retrieve bodies from clandestine graves, in Salvatierra, Guanajuato state, Mexico October 29, 2020. REUTERS/Sergio Maldonado

Attendees listen to Democratic U.S. presidential nominee and former Vice President Joe Biden at a drive-in, Get Out the Vote campaign stop in Tampa, Florida, U.S., October 29, 2020. REUTERS/Brian Snyder

U.S. President Donald Trump and first lady Melania Trump arrive aboard Air Force One from a three-day campaign swing to Joint Base Andrews, Maryland, U.S. October 29, 2020. REUTERS/Jonathan Ernst

U.S. President Donald Trump and first lady Melania Trump arrive aboard Air Force One from a three-day campaign swing to Joint Base Andrews, Maryland, U.S. October 29, 2020. REUTERS/Jonathan Ernst

U.S. President Donald Trump and first lady Melania Trump arrive aboard Air Force One from a three-day campaign swing to Joint Base Andrews, Maryland, U.S. October 29, 2020. REUTERS/Jonathan Ernst

Democratic U.S. presidential nominee and former Vice President Joe Biden is projected on a screen as he speaks at a drive-in, Get Out the Vote campaign stop in Tampa, Florida, U.S., October 29, 2020. REUTERS/Brian Snyder

A woman walks to cast her ballot at the register of voters during early voting in Phoenix, Arizona, U.S., October 29, 2020. REUTERS/Edgard Garrido

Democratic U.S. presidential nominee and former Vice President Joe Biden greets attendees at a drive-in, Get Out the Vote campaign stop in Tampa, Florida, U.S., October 29, 2020. REUTERS/Brian Snyder

A woman cleans a lion sculpture at a grave at a cemetery ahead of All Saints Day, amid the coronavirus disease (COVID-19) outbreak, in Santiago, Chile October 29, 2020. REUTERS/Ivan Alvarado

A man goes down from a ladder after decorating the grave of his relative at a cemetery ahead of All Saints Day, amid the coronavirus disease (COVID-19) outbreak, in Santiago, Chile October 29, 2020. REUTERS/Ivan Alvarado

A man decorates the grave of his brother at a cemetery ahead of All Saints Day, amid the coronavirus disease (COVID-19) outbreak, in Santiago, Chile October 29, 2020. REUTERS/Ivan Alvarado

A baby crawls at a cemetery ahead of All Saints Day, amid the coronavirus disease (COVID-19) outbreak, in Santiago, Chile October 29, 2020. REUTERS/Ivan Alvarado

A woman cleans the grave of her relative at a cemetery ahead of All Saints Day, amid the coronavirus disease (COVID-19) outbreak, in Santiago, Chile October 29, 2020. REUTERS/Ivan Alvarado

A sign reading 'Your tip is my salary' is seen next to graves at a cemetery ahead of All Saints Day, amid the coronavirus disease (COVID-19) outbreak, in Santiago, Chile October 29, 2020. REUTERS/Ivan Alvarado

Crosses are seen at a cemetery ahead of All Saints Day, amid the coronavirus disease (COVID-19) outbreak, in Santiago, Chile October 29, 2020. REUTERS/Ivan Alvarado

Signs in support of Democratic U.S. presidential nominee and former Vice President Joe Biden are displayed in the front yard of a home in Phoenix, Arizona, U.S., October 29, 2020. REUTERS/Edgard Garrido

A man holds a bouquet of flowers while visiting the grave of his relative at a cemetery ahead of All Saints Day, amid the coronavirus disease (COVID-19) outbreak, in Santiago, Chile October 29, 2020. REUTERS/Ivan Alvarado

Voters wait in a nearly four hour long line to cast their ballots during early voting at a polling site in Edmond, Oklahoma, U.S. October 29, 2020. REUTERS/Nick Oxford

An empty street is pictured in Montorgueil district as the national lockdown starts as part of the COVID-19 measures to fight a second wave of the coronavirus disease (COVID-19), in Paris, France, October 30, 2020. REUTERS/Christian Hartmann

Democratic U.S. presidential nominee and former Vice President Joe Biden speaks during a drive-in, Get Out the Vote campaign stop in Tampa, Florida, U.S., October 29, 2020. REUTERS/Brian Snyder

Voters wearing face masks due to the ongoing coronavirus disease (COVID-19) outbreak, wait in a nearly four hour long line to cast their ballots during early voting at a polling site in Edmond, Oklahoma, U.S. October 29, 2020. REUTERS/Nick Oxford

An empty street is pictured in Montorgueil district as the national lockdown starts as part of the COVID-19 measures to fight a second wave of the coronavirus disease (COVID-19), in Paris, France, October 30, 2020. REUTERS/Christian Hartmann

An empty street is pictured in Montorgueil district as the national lockdown starts as part of the COVID-19 measures to fight a second wave of the coronavirus disease (COVID-19), in Paris, France, October 30, 2020. REUTERS/Christian Hartmann

Voters wearing face masks due to the ongoing coronavirus disease (COVID-19) outbreak, wait in a nearly four hour long line to cast their ballots during early voting at a polling site in Edmond, Oklahoma, U.S. October 29, 2020. REUTERS/Nick Oxford

An empty street is pictured in Montorgueil district as the national lockdown starts as part of the COVID-19 measures to fight a second wave of the coronavirus disease (COVID-19), in Paris, France, October 30, 2020. REUTERS/Christian Hartmann

A sign in support of U.S. President Donald Trump is seen next to food during a campaign event in Phoenix, Arizona, U.S., October 29, 2020. REUTERS/Edgard Garrido

Supporters attend a campaign rally by U.S. President Donald Trump at Phoenix Goodyear Airport in Goodyear, Arizona, U.S., October 28, 2020. REUTERS/Jonathan Ernst

With less than a week before Election Day, a Halloween skeleton holds a vote sign outside a home in Falls Church, Virginia, U.S., October 29, 2020. REUTERS/Kevin Lamarque

A man walks past a sign supporting U.S President Donald Trump in Lancaster, Pennsylvania, U.S. October 25, 2020. REUTERS/Hannah McKay

Tom Moran, a school bus driver from Fenton, Michigan, holds a sign outside the Curb Event Center, the site of second and final debate between 2020 U.S. presidential candidates President Donald Trump and Democratic nominee Joe Biden on October 22 at Belmont University in Nashville, Tennessee, U.S., October 21, 2020. REUTERS/Mike Segar

Handmade yard signs supporting U.S. Democratic presidential candidate Joe Biden and his running mate, Senator Kamala Harris, are seen near corn fields on a farm in Black Earth, Wisconsin, U.S., October 17, 2020. Picture taken October 17, 2020. REUTERS/Bing Guan

A truck decorated with signs supporting U.S. President Donald Trump drives near the site of the second debate between 2020 U.S. presidential candidates President Trump and Democratic nominee and former Vice President Joe Biden at Belmont University in Nashville, Tennessee, U.S., October 20, 2020. REUTERS/Brian Snyder

Tanya Wojciak, 39, poses with her hand-painted campaign sign supporting Democratic U.S. presidential candidate Joe Biden as she stands in the street outside her neighbor's home in Cortland, Ohio, U.S., September 30, 2020. Picture taken September 30, 2020. REUTERS/Shannon Stapleton REFILE - CAPTION CLARIFICATION

A man dressed as Santa Claus holds a sign as supporters of U.S. President Donald Trump arrive for an election campaign rally at Orlando Sanford International Airport in Sanford, Florida, U.S. October 12, 2020. REUTERS/Ricardo Arduengo

A sign referencing the U.S. presidential election sits in the front yard of a home in Chagrin Falls, Ohio, U.S., September 29, 2020. REUTERS/Shannon Stapleton

A billboard funded by the Democratic Party of Wisconsin, quoting U.S. President Donald Trump?s statements about the coronavirus (COVID-19) outbreak and tallying Wisconsin?s over 50,000 COVID-19 cases, is seen in the background behind a Trump 2020 campaign flag on a farm in Concord, Wisconsin, U.S., October 18, 2020. REUTERS/Bing Guan

Retired U.S. Army veteran Duane Marxen is seen next to his homemade sign and official signs supporting U.S. Democratic presidential candidate Joe Biden and his running mate, Senator Kamala Harris, at a Biden campaign yard sign distribution site in Madison, Wisconsin, U.S., October 17, 2020. Picture taken October 17, 2020. REUTERS/Bing Guan

Handmade signs supporting U.S. President Donald Trump stand outside a business in Manitowoc, Wisconsin, U.S., August 18, 2020. REUTERS/Brian Snyder

Participants attach a sign to a vehicle during a car parade to show support for U.S. President Donald Trump in Cincinnati, Ohio, U.S., September 12, 2020. REUTERS/Jeffrey Dean

A homemade 'Women for Trump' sign is seen on the side of Interstate 80 in Danville, Pennsylvania, U.S. October 15, 2020. Picture taken October 15, 2020. REUTERS/Bing Guan

A supporter of U.S. President Donald Trump holds a sign outside of the Walter Reed National Military Medical Center, where he is being treated for the coronavirus disease (COVID-19) in Bethesda, Maryland, U.S. October 5, 2020. REUTERS/Leah Millis

Halloween decorations and support for U.S. President Donald Trump are seen in the front of supporter Maranda Joseph's yard in Warren, Ohio, U.S., October 2, 2020. REUTERS/Shannon Stapleton

Yard signs and a flag against U.S President Donald Trump are seen outside of a house in Lancaster, Pennsylvania, U.S. October 25, 2020. REUTERS/Hannah McKay

A 14-foot cutout of U.S. President Donald Trump stands on the front lawn of the self-proclaimed 'Trump House' in Youngstown, Pennsylvania, U.S., October 21, 2020. REUTERS/Shannon Stapleton TPX IMAGES OF THE DAY

A truck passes a sign erected in support of U.S. President Donald Trump ahead of the election near Rochester, Minnesota, U.S. September 30, 2020. Picture taken September 30, 2020. REUTERS/Eric Miller

A trailer is decorated with campaign signs for U.S. President Donald Trump on a roadside in the Northampton County borough of Wind Gap, Pennsylvania, U.S., October 2, 2020. Northampton County, a longtime bellwether district that voted for Barack Obama in 2012 before swinging to Donald Trump in 2016, has been hit hard by COVID-19, with a death rate well above the U.S. average, and an unemployment rate that's more than doubled in the last year. Photo taken October 2, 2020. REUTERS/Brian Snyder

Handmade signs reading "Make America Moral Again" are seen in the front yard of a supporter of U.S. Democratic presidential candidate Joe Biden and his running mate, Senator Kamala Harris, in Cross Plains, Wisconsin, U.S., October 17, 2020. Picture taken October 17, 2020. REUTERS/Bing Guan

A digital billboard advertisement opposing U.S. Democratic presidential candidate Joe Biden is seen along a road in Monroeville, Pennsylvania, U.S., October 21, 2020. REUTERS/Shannon Stapleton

A semi truck travels past a barn with signs in support of U.S. Democratic presidential candidate Joe Biden and running mate Senator Kamala Harris in Johnson Creek, Wisconsin, U.S., October 21, 2020. Picture taken with a long exposure. REUTERS/Bing Guan REFILE - ADDING DROPPED NAME

Signs are seen along Interstate 94 (I-94) in Otter Creek, Dunn County, Wisconsin, U.S., October 22, 2020. REUTERS/Bing Guan

A sign against U.S President Donald Trump is seen outside of a house in Lancaster, Pennsylvania, U.S. October 25, 2020. REUTERS/Hannah McKay

A pumpkin display supporting Democratic U.S. presidential nominee and former Vice President Joe Biden is seen outside of a house in Lancaster, Pennsylvania, U.S. October 25, 2020. REUTERS/Hannah McKay

Supporters attend a rally with U.S. President Donald Trump at Phoenix Goodyear Airport in Goodyear, Arizona, U.S. October 28, 2020. REUTERS/Jonathan Ernst

Cars drive past a voting sign on an avenue, in Philadelphia, Pennsylvania, U.S., October 29, 2020. REUTERS/Hannah McKay

Images of U.S. President Donald Trump are seen on a car window before a car caravan supporting the president in Easton, Pennsylvania, U.S., October 25, 2020. Picture taken October 25, 2020. REUTERS/Caitlin Ochs TPX IMAGES OF THE DAY

A sign protesting U.S. President Donald Trump is seen outside a campaign rally in Allentown, Pennsylvania, U.S., October 26, 2020. Picture taken October 26, 2020. REUTERS/Caitlin Ochs

Signs in support of U.S. Democratic Presidential nominee Joe Biden are displayed in Jermyn, Pennsylvania, U.S., October 28, 2020. Picture taken October 28, 2020. REUTERS/Caitlin Ochs

Trump supporters use flags in an attempt to block the sign of a Biden supporter outside the site of the 2020 vice presidential debate between U.S. Vice President Mike Pence and Democratic vice presidential nominee and U.S. Senator Kamala Harris, at the campus of the University of Utah in Salt Lake City, Utah, U.S., October 7, 2020. REUTERS/Jim Urquhart

A sign encouraging voter turnout is seen at a campaign yard sign distribution site for U.S. Democratic presidential candidate Joe Biden and his running mate, Senator Kamala Harris, in Madison, Wisconsin, U.S., October 17, 2020. Picture taken October 17, 2020. REUTERS/Bing Guan

Protesters hold up signs against U.S. President Donald Trump and a campaign sign for Democratic presidential nominee Joe Biden in reaction to Trump's passing motorcade in Chanhassen, Minnesota, U.S., September 30, 2020. REUTERS/Leah Millis

A sign supporting Democratic U.S. presidential candidate Joe Biden sits in the front yard of a home in Chagrin Falls, Ohio, U.S., September 29, 2020. REUTERS/Shannon Stapleton

Signs supporting U.S. President Donald Trump are seen in a field near Burton, Ohio, U.S., October 2, 2020. REUTERS/Shannon Stapleton

A sign supporting U.S. President Donald Trump is displayed near the site of a visit by Vice President Mike Pence in Darien, Wisconsin, U.S., August 19, 2020. REUTERS/Brian Snyder

A counter-protestor holds up sign in front of demonstrators at the "Peaceful Protest Against Democrat Violence" sponsored by Super Happy Fun America in Boston, Massachusetts, U.S., October 18, 2020. REUTERS/Brian Snyder

Olivia Mancing (L) and Zachery Quale talk outside of Flora Gallery and Coffee Shop near a downed tree in the street after Hurricane Zeta swept through New Orleans, Louisiana, U.S. October 29, 2020. REUTERS/Kathleen Flynn