Police officers stand guard at the corner of 17th Street and Pennsylvania Avenue, near the White House, in Washington, U.S., August 10, 2020. REUTERS/Carlos Barria

A member of U.S. Secret Services stands guard while U.S. President Donald Trump gives a coronavirus disease (COVID-19) pandemic briefing at the White House in Washington, U.S., August 10, 2020. REUTERS/Kevin Lamarque

An entrance to Michigan Stadium is seen on the University of Michigan campus amid reports of college football cancellation, during the outbreak of the coronavirus disease (COVID-19), in Ann Arbor, Michigan, U.S., August 10, 2020. REUTERS/Emily Elconin

An empty Michigan Stadium is seen on the University of Michigan campus amid reports of college football cancellation, during the outbreak of the coronavirus disease (COVID-19), in Ann Arbor, Michigan, U.S. August 10, 2020. REUTERS/Emily Elconin

An empty Michigan Stadium is seen on the University of Michigan campus amid reports of college football cancellation, during the outbreak of the coronavirus disease (COVID-19), in Ann Arbor, Michigan, U.S. August 10, 2020. REUTERS/Emily Elconin

The student will call window outside of Michigan Stadium is seen on the University of Michigan campus amid reports of college football cancellation, during the outbreak of the coronavirus disease (COVID-19), in Ann Arbor, Michigan, U.S., August 10, 2020. REUTERS/Emily Elconin

A member of U.S. Secret Services stands guard while U.S. President Donald Trump gives a coronavirus disease (COVID-19) pandemic briefing at the White House in Washington, U.S., August 10, 2020. REUTERS/Kevin Lamarque

Police officers stand guard at the corner of 17th Street and Pennsylvania Avenue, near the White House, in Washington, U.S., August 10, 2020. REUTERS/Carlos Barria

Members of U.S. Secret Services stand guard at the White House in Washington, U.S., August 10, 2020. REUTERS/Kevin Lamarque

A member of U.S. Secret Services stands guard while U.S. President Donald Trump gives a coronavirus disease (COVID-19) pandemic briefing at the White House in Washington, U.S., August 10, 2020. REUTERS/Kevin Lamarque

The newly renovated Mayflower II, a replica of the original ship that sailed from England in 1620, sails back to its berth in Plymouth, Massachusetts, U.S., August 10, 2020. REUTERS/Brian Snyder

The newly renovated Mayflower II, a replica of the original ship that sailed from England in 1620, is preceded by a fire boat as it returns to its berth in Plymouth, Massachusetts, U.S., August 10, 2020. REUTERS/Brian Snyder

The newly renovated Mayflower II, a replica of the original ship that sailed from England in 1620, passes Bug Light on the way back to its berth in Plymouth, Massachusetts, U.S., August 10, 2020. REUTERS/Brian Snyder

Crew members take in the sails of the newly renovated Mayflower II, a replica of the original ship that sailed from England in 1620, on the return trip to its berth in Plymouth, Massachusetts, U.S., August 10, 2020. REUTERS/Brian Snyder

The newly renovated Mayflower II, a replica of the original ship that sailed from England in 1620, sails back to its berth in Plymouth, Massachusetts, U.S., August 10, 2020. REUTERS/Brian Snyder

The newly renovated Mayflower II, a replica of the original ship that sailed from England in 1620, sails back to its berth in Plymouth, Massachusetts, U.S., August 10, 2020. REUTERS/Brian Snyder

Crew members take in the sails of the newly renovated Mayflower II, a replica of the original ship that sailed from England in 1620, on the return trip to its berth in Plymouth, Massachusetts, U.S., August 10, 2020. REUTERS/Brian Snyder

Crows of people onshore watch the newly renovated Mayflower II, a replica of the original ship that sailed from England in 1620, return to its berth in Plymouth, Massachusetts, U.S., August 10, 2020. REUTERS/Brian Snyder

Boaters watch the newly renovated Mayflower II, a replica of the original ship that sailed from England in 1620, return to its berth in Plymouth, Massachusetts, U.S., August 10, 2020. REUTERS/Brian Snyder

The newly renovated Mayflower II, a replica of the original ship that sailed from England in 1620, passes Bug Light on the way back to its berth in Plymouth, Massachusetts, U.S., August 10, 2020. REUTERS/Brian Snyder

The newly renovated Mayflower II, a replica of the original ship that sailed from England in 1620, is preceded by a fire boat as it returns to its berth in Plymouth, Massachusetts, U.S., August 10, 2020. REUTERS/Brian Snyder

A crew member looks out from the bow of the newly renovated Mayflower II, a replica of the original ship that sailed from England in 1620, as it sails back to its berth in Plymouth, Massachusetts, U.S., August 10, 2020. REUTERS/Brian Snyder

The main entrance to Michigan Stadium is seen on the University of Michigan campus amid reports of college football cancellation, during the outbreak of the coronavirus disease (COVID-19), in Ann Arbor, Michigan, U.S. August 10, 2020. REUTERS/Emily Elconin

A University of Michigan campus bus is seen amid reports of college football cancellation, during the outbreak of the coronavirus disease (COVID-19), in Ann Arbor, Michigan, U.S., August 10, 2020. REUTERS/Emily Elconin

An entrance to Michigan Stadium is seen on the University of Michigan campus amid reports of college football cancellation, during the outbreak of the coronavirus disease (COVID-19), in Ann Arbor, Michigan, U.S. August 10, 2020. REUTERS/Emily Elconin

Members of U.S. Secret Services stand guard at the White House in Washington, U.S., August 10, 2020. REUTERS/Kevin Lamarque

Members of U.S. Secret Services patrol the White House in Washington, U.S., August 10, 2020. REUTERS/Kevin Lamarque

A view outside the main entrance to the Crisler Center at the University of Michigan campus amid reports of college football cancellation, during the outbreak of the coronavirus disease (COVID-19), in Ann Arbor, Michigan, U.S., August 10, 2020. REUTERS/Emily Elconin

U.S. President Donald Trump holds during a coronavirus disease (COVID-19) pandemic briefing at the White House in Washington, U.S., August 10, 2020. REUTERS/Kevin Lamarque

Gates are seen inside an empty Michigan Stadium on the University of Michigan campus amid reports of college football cancellation, during the outbreak of the coronavirus disease (COVID-19), in Ann Arbor, Michigan, U.S., August 10, 2020. REUTERS/Emily Elconin

A person rides a bike past the main entrance to the Crisler Center at the University of Michigan campus amid reports of college football cancellation, during the outbreak of the coronavirus disease (COVID-19), in Ann Arbor, Michigan, U.S., August 10, 2020. REUTERS/Emily Elconin

A view of the student will call window outside of Michigan Stadium on the University of Michigan campus amid reports of college football cancellation, during the outbreak of the coronavirus disease (COVID-19), in Ann Arbor, Michigan, U.S., August 10, 2020. REUTERS/Emily Elconin

A member of U.S. Secret Services patrols the White House in Washington, U.S., August 10, 2020. REUTERS/Kevin Lamarque

U.S. President Donald Trump leaves a coronavirus disease (COVID-19) pandemic briefing at the White House in Washington, U.S., August 10, 2020. REUTERS/Kevin Lamarque

Soccer Football - Europa League Quarter Final - Manchester United v FC Copenhagen - RheinEnergieStadion, Cologne, Germany - August 10, 2020 Manchester United manager Ole Gunnar Solskjaer with Copenhagen coach Stale Solbakken after the match REUTERS/Wolfgang Rattay/Pool

U.S. President Donald Trump leaves a coronavirus disease (COVID-19) pandemic briefing at the White House in Washington, U.S., August 10, 2020. REUTERS/Kevin Lamarque

A crew member looks out from the bow of the newly renovated Mayflower II, a replica of the original ship that sailed from England in 1620, as it sails back to its berth in Plymouth, Massachusetts, U.S., August 10, 2020. REUTERS/Brian Snyder

The newly renovated Mayflower II, a replica of the original ship that sailed from England in 1620, sails back to its berth in Plymouth, Massachusetts, U.S., August 10, 2020. REUTERS/Brian Snyder

The newly renovated Mayflower II, a replica of the original ship that sailed from England in 1620, sails back to its berth in Plymouth, Massachusetts, U.S., August 10, 2020. REUTERS/Brian Snyder

Soccer Football - Europa League Quarter Final - Manchester United v FC Copenhagen - RheinEnergieStadion, Cologne, Germany - August 10, 2020 Manchester United manager Ole Gunnar Solskjaer with Copenhagen coach Stale Solbakken after the match REUTERS/Wolfgang Rattay/Pool

Members of U.S. Secret Services patrol the White House in Washington, U.S., August 10, 2020. REUTERS/Kevin Lamarque

A view of student will call windows outside of Michigan Stadium on the University of Michigan campus amid reports of college football cancellation, during the outbreak of the coronavirus disease (COVID-19), in Ann Arbor, Michigan, U.S. August 10, 2020. REUTERS/Emily Elconin

Member of U.S. Secret Services patrols the White House in Washington, U.S., August 10, 2020. REUTERS/Kevin Lamarque

A no re-entry sign is displayed in front of Michigan Stadium on the University of Michigan campus amid reports of college football cancellation, during the outbreak of the coronavirus disease (COVID-19), in Ann Arbor, Michigan, U.S., August 10, 2020. REUTERS/Emily Elconin

U.S. President Donald Trump holds during a coronavirus disease (COVID-19) pandemic briefing at the White House in Washington, U.S., August 10, 2020. REUTERS/Kevin Lamarque

A view outside of Michigan Stadium on the University of Michigan campus amid reports of college football cancellation in Ann Arbor, Michigan, U.S., August 10, 2020. REUTERS/Emily Elconin

U.S. President Donald Trump talks with a secret service agent before leaving a coronavirus disease (COVID-19) pandemic briefing at the White House in Washington, U.S., August 10, 2020. REUTERS/Kevin Lamarque

U.S. President Donald Trump talks with a secret service agent before leaving a coronavirus disease (COVID-19) pandemic briefing at the White House in Washington, U.S., August 10, 2020. REUTERS/Kevin Lamarque

U.S. President Donald Trump talks with a secret service agent before leaving a coronavirus disease (COVID-19) pandemic briefing at the White House in Washington, U.S., August 10, 2020. REUTERS/Kevin Lamarque

U.S. President Donald Trump leaves a coronavirus disease (COVID-19) pandemic briefing at the White House in Washington, U.S., August 10, 2020. REUTERS/Kevin Lamarque

U.S. President Donald Trump leaves a coronavirus disease (COVID-19) pandemic briefing at the White House in Washington, U.S., August 10, 2020. REUTERS/Kevin Lamarque

U.S. President Donald Trump leaves a coronavirus disease (COVID-19) pandemic briefing at the White House in Washington, U.S., August 10, 2020. REUTERS/Kevin Lamarque

U.S. President Donald Trump leaves a coronavirus disease (COVID-19) pandemic briefing at the White House in Washington, U.S., August 10, 2020. REUTERS/Kevin Lamarque

U.S. President Donald Trump holds a coronavirus disease (COVID-19) pandemic briefing at the White House in Washington, U.S., August 10, 2020. REUTERS/Kevin Lamarque

U.S. President Donald Trump holds a coronavirus disease (COVID-19) pandemic briefing at the White House in Washington, U.S., August 10, 2020. REUTERS/Kevin Lamarque

U.S. President Donald Trump gestures during a coronavirus disease (COVID-19) pandemic briefing at the White House in Washington, U.S., August 10, 2020. REUTERS/Kevin Lamarque

U.S. President Donald Trump speaks during a coronavirus disease (COVID-19) pandemic briefing at the White House in Washington, U.S., August 10, 2020. REUTERS/Kevin Lamarque

Soccer Football - Europa League Quarter Final - Manchester United v FC Copenhagen - RheinEnergieStadion, Cologne, Germany - August 10, 2020 Manchester United's Bruno Fernandes scores their first goal from the penalty spot, as play resumes behind closed doors following the outbreak of the coronavirus disease (COVID-19) Pool via Reuters/Wolfgang Rattay

Soccer Football - Europa League Quarter Final - Manchester United v FC Copenhagen - RheinEnergieStadion, Cologne, Germany - August 10, 2020 Manchester United's Bruno Fernandes scores their first goal from the penalty spot, as play resumes behind closed doors following the outbreak of the coronavirus disease (COVID-19) Pool via Reuters/Wolfgang Rattay

A man drinks beer from a brown paper bag as he stands in the median park of Broadway Ave. on the Upper West Side in the Manhattan borough of New York City, New York, U.S., August 10, 2020. REUTERS/Carlo Allegri