Trump, Biden prepare to debate at a time of mounting crises Guests for the first presidential debate take their seats, Tuesday, Sept. 29, 2020, at Case Western University and Cleveland Clinic, in Cleveland, Ohio. (AP Photo/Patrick Semansky)
President Donald Trump gives a thumbs up as he arrives at Cleveland Hopkins International Airport for the first presidential debate, Tuesday, Sept. 29, 2020, in Cleveland. (AP Photo/Evan Vucci)
The Ohio National Guard directs traffic away from the debate hall, Tuesday, Sept. 29, 2020, in Cleveland. The first presidential debate between Republican candidate President Donald Trump and Democratic candidate and former Vice President Joe Biden is being held in Cleveland Tuesday. (AP Photo/Tony Dejak)
UFC fighter Colby Covington takes his seat as a guest of President Donald Trump to watch the first presidential debate Tuesday, Sept. 29, 2020, at Case Western University and Cleveland Clinic, in Cleveland, Ohio. (AP Photo/Patrick Semansky)
President Donald Trump, left, and Democratic presidential candidate former Vice President Joe Biden, right, with moderator Chris Wallace, center, of Fox News during the first presidential debate Tuesday, Sept. 29, 2020, at Case Western University and Cleveland Clinic, in Cleveland, Ohio. (AP Photo/Patrick Semansky)
Democratic presidential candidate former Vice President Joe Biden speaks during the first presidential debate with President Donald Trump Tuesday, Sept. 29, 2020, at Case Western University and Cleveland Clinic, in Cleveland, Ohio. (AP Photo/Patrick Semansky)
President Donald Trump makes a point during the first presidential debate against Democratic presidential candidate former Vice President Joe Biden, Tuesday, Sept. 29, 2020, at Case Western University and Cleveland Clinic, in Cleveland, Ohio. (AP Photo/Morry Gash, Pool)
President Donald Trump and Democratic presidential candidate former Vice President Joe Biden exchange points during the first presidential debate Tuesday, Sept. 29, 2020, at Case Western University and Cleveland Clinic, in Cleveland, Ohio. (AP Photo/Morry Gash, Pool)
President Donald Trump and Democratic presidential candidate former Vice President Joe Biden participate in the first presidential debate Tuesday, Sept. 29, 2020, at Case Western University and Cleveland Clinic, in Cleveland, Ohio. (Olivier Douliery/Pool vi AP)
Democratic presidential candidate former Vice President Joe Biden answers a question during the first presidential debate Tuesday, Sept. 29, 2020, at Case Western University and Cleveland Clinic, in Cleveland, Ohio. (AP Photo/Morry Gash, Pool)
President Donald Trump responds to Democratic presidential candidate former Vice President Joe Biden during the first presidential debate Tuesday, Sept. 29, 2020, at Case Western University and Cleveland Clinic, in Cleveland, Ohio. (AP Photo/Morry Gash, Pool)
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Guests for the first presidential debate take their seats, Tuesday, Sept. 29, 2020, at Case Western University and Cleveland Clinic, in Cleveland, Ohio. (AP Photo/Patrick Semansky)