Trump to appeal to Nevada voters from neighboring Arizona Democratic presidential candidate former Vice President Joe Biden speaks to the media after voting at the Carvel State Office Building, Wednesday, Oct. 28, 2020, in Wilmington, Del. (AP Photo/Andrew Harnik)
Democratic vice presidential candidate Sen. Kamala Harris, D-Calif., speaks to the media after arriving at Sky Harbor International Airport, Wednesday, Oct. 28, 2020, in Phoenix. (AP Photo/Matt York)
Democratic presidential candidate former Vice President Joe Biden attends a virtual public health briefing at The Queen theater in Wilmington, Del., Wednesday, Oct. 28, 2020. (AP Photo/Andrew Harnik)
President Donald Trump plays a video of Democratic presidential candidate former Vice President Joe Biden during a campaign rally at Phoenix Goodyear Airport, Wednesday, Oct. 28, 2020, in Goodyear, Ariz. (AP Photo/Evan Vucci)
President Donald Trump points to the crowd as he walks off stage after speaking during a campaign rally at Laughlin/Bullhead International Airport, Wednesday, Oct. 28, 2020, in Bullhead City, Ariz. (AP Photo/Evan Vucci)
President Donald Trump speaks during a campaign rally at Laughlin/Bullhead International Airport, Wednesday, Oct. 28, 2020, in Bullhead City, Ariz. (AP Photo/Evan Vucci)
Supporters of President Donald Trump listen to him speak during a campaign rally at Laughlin/Bullhead International Airport, Wednesday, Oct. 28, 2020, in Bullhead City, Ariz. (AP Photo/Evan Vucci)
Democratic presidential candidate former Vice President Joe Biden speaks during a virtual public health briefing at The Queen theater in Wilmington, Del., Wednesday, Oct. 28, 2020. (AP Photo/Andrew Harnik)
President Donald Trump arrives at a campaign rally Wednesday, Oct. 28, 2020, in Bullhead City, Ariz. (AP Photo/John Locher)
Democratic presidential candidate former Vice President Joe Biden and his wife Jill Biden wave after they voted at the Carvel State Office Building, Wednesday, Oct. 28, 2020, in Wilmington, Del. (AP Photo/Andrew Harnik)
President Donald Trump arrives at a campaign rally Wednesday, Oct. 28, 2020, in Bullhead City, Ariz. (AP Photo/John Locher)
Supporters of President Donald Trump cheer as he arrives for a campaign rally at Laughlin/Bullhead International Airport, Wednesday, Oct. 28, 2020, in Bullhead City, Ariz. (AP Photo/Evan Vucci)
Democratic presidential candidate former Vice President Joe Biden and his wife Jill Biden pause to speak to the media after they voted at the Carvel State Office Building, Wednesday, Oct. 28, 2020, in Wilmington, Del. (AP Photo/Andrew Harnik)
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Democratic presidential candidate former Vice President Joe Biden speaks to the media after voting at the Carvel State Office Building, Wednesday, Oct. 28, 2020, in Wilmington, Del. (AP Photo/Andrew Harnik)