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 said, and more,” Trump told cheering supporters at Muskegon County Airport in Muskegon, Mich. — one of the Democratic strongholds he won by a fraction of a percentage point in 2016.
“But Sleepy Joe has made a corrupt bargain: he has handed his party over to the hardcore militant left,” he said. “They crave power, and God help us if they ever did get it.”
Afterward, he headed to a second rally in Janesville, Wis.
Both Rust Belt states were key bricks in the Democratic “blue wall” that crumbled to Trump in the last presidential election — and that Biden’s campaign intends to wrest back.
Biden made one of his infrequent appearances in Michigan on Friday.
Since August, Trump has made 37 appearances in 15 states — despite being forced off the stump for 10 days to recover from a case of COVID-19.
Biden, who did not begin in-person campaigning until Labor Day, has made stops in only 20 cities, each appearance limited to a few dozen attendees.
And with his polling lead in the top Electoral College battlegrounds hovering at just under 5 percent, few Democrats are complaining about his laid-back schedule.