Here’s what you need to know about the battleground states:

Georgia

2016 Results: Trump 51% - Clinton 45.9%

2020 Results: Biden 49.5% - Trump 49.3%

Recent Polls:

Marist: Trump 49%, Harris 49% (Oct. 17-22; 1,193 likely voters; ±3.9 points)

Bloomberg: Trump 49.9%, Harris 48.4% (Oct. 16-20; 855 likely voters; ±3 points)

North Carolina

2016 Results: Trump 50.5% - Clinton 46.8%

2020 Results: Trump 50.1% - Biden 48.7%

Recent Polls:

Marist: Trump 50%, Harris 48% (Oct. 17-22; 1,226 likely voters; ±3.6 points)

Emerson: Trump 50%, Harris 48% (Oct. 21-22; 950 likely voters; ±3.1 points)

Pennsylvania

2016 Results: Trump 48.6% - Clinton 47.9%

2020 Results: Biden 50% - Trump 48.8%

Recent Polls:

Emerson: Trump 49%, Harris 48% (Oct. 21-22; 860 likely voters; ±3.3 points)

Bloomberg: Trump 48%, Harris 50% (Oct. 16-20; 812 likely voters; ±3 points)

Michigan

2016 Results: Trump 47.6% - Clinton 47.4%

2020 Results: Biden 50.6% - Trump 47.8%

Recent Polls:

Quinnipiac: Trump 46%, Harris 49% (Oct. 17-21; 1,136 likely voters; ±2.9 points)

Bloomberg: Trump 46.5%, Harris 49.6% (Oct. 16-20; 705 likely voters; ±4 points)

Wisconsin

2016 Results: Trump 47.8% - Clinton 47%

2020 Results: Biden 49.6% - Trump 48.9%

Recent Polls:

USA TODAY/Suffolk University: Trump 48%, Harris 47% (Oct. 20-23; 500 likely voters; ±4.4 points)

Emerson: Trump 49%, Harris 48% (Oct. 21-22; 800 likely voters; ±3.4 points)

Nevada

2016 Results: Clinton 47.9% - Trump 45.5%

2020 Results: Biden 50.1% - Trump 47.7%

Recent Polls:

Bloomberg: Harris 48.8%, Trump 48.3% (Oct. 16-26; 420 likely voters; ±5 points)

AtlasIntel: Harris 48%, Trump 48% (Oct. 12-17; 1,171 likely voters; ±3 points)

Arizona

2016 Results: Trump 49% - Clinton 45.5%

2020 Results: Biden 49.4% - Trump 49.1%

Recent Polls:

Marist: Trump 50%, Harris 49% (Oct. 17-22; 1,193 likely voters; ±3.7 points)

Bloomberg: Trump 49%, Harris 49% (Oct. 16-20; 861 likely voters; ±3 points)