The big mystery of this election is why there was a disparity between President-elect Joe Biden’s decisive win and Democrats’ disappointing down-ballot performance.

WILMINGTON, DE – DECEMBER 23: President-Elect Joe Biden announces Miguel Cardona as his nominee for Education Secretary at the Queen theatre on December 23, 2020 in Wilmington, Delaware. Cardona, the Connecticut Education Commissioner, will face the urgent task of planning to reopen schools safely during the COVID-19 pandemic. (Photo by Joshua Roberts/Getty Images)