Before the polls for the US presidential election close in Pennsylvania, one of the key battleground states, Governor Tom Wolf has urged residents to remain calm .
Washington:
"Across the state, dedicated county workers are ready to tirelessly make sure everyone's vote counts," CNN quoted Wolf as saying in a video message.
"But counting that tremendous number of ballots will take more time than we are used to. We may not know the results today, but I encourage all of us to take a deep breath and be patient.
"What is most important is that we have accurate results, even if that takes a little longer," he added.
In Pennsylvania, where the two candidates spent the weekend campaigning in a last-ditch efforts to garner votes, an NBC News-Marist poll released on Monday placed Biden ahead with a 5-point lead, 51 per cent to 46 per cent.
Meanwhile, the RealClearPolitics polling average gave the former Vice President a 4.3 percentage point lead over the President.
But the state's results won't be immediately due to the large number of early and mail-in votes that have already been cast.
Besides the Trump-Biden race, all 435 seats in the US House of Representatives and 35 of the 100 seats in the Senate were also be in the fray on Tuesday.
More than a dozen state and territorial governorships, among many other state and local posts, will also be contested.
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