Biden and Democrats see signs of change in the South that gives them hope.
A narrow Wisconsin win by Trump in 2016 helped make the electoral college count that gave him the presidency.
Democrats plan to implement recommended safety procedures to protect its party’s delegates while Republicans say they will throw cautions to the winds.
His back-to-back wins in South Carolina and on Super Tuesday has turned his campaign around.
“We must get our fired-up Democratic base with us,” said Sen. Amy Klobuchar of Minnesota. “But let’s also get those independents and moderate Republicans who cannot stomach (Trump) anymore.”
Voters in suburban swaths of Kentucky and Virginia sided with Democrats, a trend that would complicate Trump’s path to reelection if it holds.