US Election: Snapshots of the Vote Counting Impasse

A newspaper's front headline states "Still Counting..." after Democratic presidential nominee Joe Biden overtook President Donald Trump in the Pennsylvania general election vote count, in Philadelphia, Pennsylvania, Nov. 6, 2020.

A supporter of President Donald Trump, center, engages with a supporter of Democratic presidential candidate former Vice President Joe Biden, off camera, during a protest in Las Vegas, Nevada, Nov. 6, 2020.

A woman dances after Democratic presidential candidate Joe Biden overtook President Donald Trump in the Pennsylvania general election vote count, in Philadelphia, Pennsylvania, Nov. 6, 2020.

A supporter of President Donald Trump yells at a supporter of Democratic presidential candidate Joe Biden, in Philadelphia, Pennsylvania, Nov. 6, 2020.

People gather after Democratic presidential candidate Joe Biden overtook President Donald Trump in the Pennsylvania general election vote count, in Philadelphia, Pennsylvania, Nov. 6, 2020.

Trump supporters gather after Democratic presidential nominee Joe Biden overtook President Donald Trump in the Pennsylvania general election vote count, in Philadelphia, Pennsylvania, Nov. 6, 2020.

Activists hold signs saying "Every Vote Counts," after Democratic presidential nominee Joe Biden overtook President Donald Trump in the Pennsylvania general election vote count, in Philadelphia, Pennsylvania, Nov. 6, 2020.

Trump supporters carry a "Stop the Steal" and campaign sign after Democratic presidential nominee Joe Biden overtook President Donald Trump in the Pennsylvania general election vote count, in Philadelphia, Pennsylvania, Nov. 6, 2020.

Demonstrators demanding President Donald Trump concede chant three days after the presidential election polls closed, in Philadelphia, Pensylvania, Nov. 6, 2020.

Police separate President Donald Trump supporters and pro-vote counting demonstrators three days after the presidential election polls closed, in Philadelphia, Pensylvania, Nov. 6, 2020.

People urge for all votes to be counted as they demonstrate in Philadelphia, Pensylvania, Nov. 6, 2020.

A demonstrator stands with supporters of President Donald Trump outside the Pennsylvania Convention Center where votes are being counted, in Philadelphia, Pensylvania, Nov. 6, 2020.