From the Washington Post:
Whatever people thought they knew about the state of the presidential race a few weeks ago went out the window on Tuesday, turning Election Day into a tense night of counting and indecision and proving once again that there are no easy elections in a divided America.
Instead of President Trump prematurely declaring victory based on incomplete results from Election Day voting, or former vice president Joe Biden blowing out the electoral map on the strength of a massive blue wave of early votes, Election 2020 instead produced a night of nail-biting, stomach-churning results — with the possibility that the outcome would not be known for days.
With so many states undecided, it wasn’t clear whether this election would be a repeat of 2016, a shocker to the world and demoralizing to the Democrats, or something closer to 2018, when the Democrats’ seemingly slow start eventually became a wave that flipped the House. Either outcome seemed possible with so many states not called. As the night went on, the prospect for a close outcome in the electoral college continued to grow.
There was one clear echo from 2016: The three Northern states that secured Trump’s victory — Pennsylvania, Michigan and Wisconsin — appeared poised to play the decisive role again this year. But unlike many other states, none of the three began counting the massive numbers of early votes until Tuesday, meaning it could be days before the identity of the winner is known.
With the election in the balance, the counting of the mail ballots in those Northern states likely will result in legal challenges that could affect which ballots are and are not counted. The president has complained about mail ballots, claiming falsely that they are rife with fraud, and Republicans have sought to limit the time for ballots to arrive to be eligible for counting.