It's astonishes me that if only ~45,000 voters in Wisconsin, Arizona, and Georgia had voted differently, the Electoral College would have been tied, and it would have been thrown into the House of Representatives for the first time since 1824 (or 1876 if you count the chicanery surrounding Hayes' victory). And Biden has built a popular vote lead of over seven million votes, much larger than the two million vote lead of Hillary Clinton in 2016. The Biden campaign was correct in approaching this as a tight election and not taking things for granted.
True.