tabulate

With some states still tabulating their results, Trump currently has improved on his electoral margins in at least 2,367 US counties, while slipping in just 240.

However, the chart and the figures circulating online were based on preliminary vote totals, which continue to go up as final results are still being tabulated.

Polls are closed across many of the East Coast battleground states, and votes are being tabulated at a rapid clip.

Counting ballots involves feeding each one into electronic scanners that tabulate their results.

Mail-in voting is expected to be lower this year, but the state reports that it has already received 217,000 completed ballots that, by Pennsylvania law, cannot be opened and tabulated until election night.