It was back to the basement for Joe Biden Saturday — as President Trump went into campaign overdrive.
With only 16 days to go before Election Day, amid an uproar over The Post’s expose of son Hunter’s shady foreign business deals and with a second debate face-off this week, Biden retreated to his Delaware home with no public events on his schedule — and a substantial but slightly slipping national polling lead in his pocket.
Meanwhile, the underdog president whipped up his troops Saturday at back-to-back rallies in two crucial battleground states, with two more of the raucous gatherings set for Sunday and a full slate of appearances this week that will have him hopscotching across the country.
The candidates’ plans for the penultimate weekend of the election season are polar opposites: while Trump plans four mega-rallies in four battleground states, Biden will hold a single Sunday event in a still-undisclosed location in North Carolina.
“We’ve done everything we