Nevada has flipped between red and blue over the past couple of decades—the formerly Republican state went for Bill Clinton, then went red for George W. Bush, but back to blue for Obama and Hillary Clinton. She won by a narrow 2.4%—not the 7-12% lead they gave Obama. The current polling gives Biden a modest lead of around 6 points.
In the 2018 midterms, Nevada had a ‘blue wave’, flipping one of its Senate seats and its Governor from Republicans to Democrats. Its Senators are not up for election this year—Nevada is one of just five states with two female Democratic Senators (the others are California, Minnesota, New Hampshire, and Washington).