It's either brilliant or delusional -- a sign of changing realities or political hubris. There's no way to know which for at least another eight days.

Biden's campaign is seeing an expanding map and looking to play all over it during the final stretch of the race.

Biden will spend Tuesday in Georgia, with Sen. Kamala Harris expected in Texas this week and former President Barack Obama being deployed again to Florida. Democrats are playing in a battleground map of 17 states -- when all they needs to do is flip the right three.

Those key three are where Trump is spending his Monday and Tuesday, with a crush of rallies that both defy social-distance guidelines and remain the kind of events that only he could pull together.

Trump's focus is falling on the trio Democrats have stressed over for four years running: Pennsylvania, where he will have three rallies Monday, then Wisconsin and Michigan Tuesday, with the president campaigning primarily in GOP strongholds inside those states.

One school of thought will always second-guess any time spent by either candidate anywhere else. But Biden is flush with both cash and eager surrogates, and is watching early turnout numbers blow past expectations while new COVID-19 spikes keep the race focused on where he wants it.

Trump still has to worry about a crumbling coalition of states the GOP considered safe. He never wanted to have to campaign in Ohio or Florida at this stage of the race, to say nothing of Nebraska -- where he will squeeze in a trip Tuesday -- or South Carolina, where Vice President Mike Pence will be that same day.

Polling and pandemic realities confirm something smart political minds have long said: 2020 is not 2016. But the thought that pursuing close to 400 electoral votes could make the path to 270 even a little harder will haunt some Democrats until the end of this long race

-ABC News’ Political Director Rick Klein