Morning in America: nail-biter of a presidential election remains undecided

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It's morning in America, but not the calm one once showcased in a famous U.S. presidential ad.
     
Americans are waking up to uncertainty about their political leadership as the outcome of the bitterly contested 2020 presidential election remains unclear.
     
The final results were likely in the hands of a few key states as the counting of millions of mail-in or early ballots complicated what is normally a relatively swift process of election night vote tallies.
     
In a speech just before 1 a.m. ET, Democratic challenger Joe Biden told supporters he was feeling good about where his campaign was: ``on track to win this election.''
     
President Donald Trump, the Republican incumbent, moved quickly on Twitter to knock Biden down, saying his campaign was up ``big.''

As polls closed Tuesday, Trump was handed unsurprising wins in solidly Republican districts, with Biden scooping up comfortably Democratic states as well.

Trump also picked up the battleground states of Texas, Florida, Iowa and Ohio, while Biden carried New Hampshire and Minnesota.

But as of 2 a.m., several states remained too close to call, including Arizona, Michigan, Pennsylvania and Wisconsin.