We are now at 72 hours without a result from the US election - an outcome that was always a possibility due to record numbers of early and postal votes spurred by the coronavirus pandemic.
But that hasn't stopped many across the world from wondering: why is it taking so long?
The AFP newswire has filed a handy explainer to answer this very question. Here's what they had to say:
Competitive states take longer
California, the nation's most populous state, was quickly called for Joe Biden after polls closed on election day. But such calls are in fact projections by news outlets rather than official results, meaning that it takes longer to get an accurate picture in narrowly divided states.
States also have diverse deadlines on receiving absentee ballots, especially those coming from the military or other citizens living overseas.
For example, North Carolina has held off on counting at least 171,000 ballots - which could make the difference - as by law it accepts votes that arrive by mail through 12 November so long as they were postmarked by Election Day.
Deluge of mail-in ballots
With concerns about the COVID-19 pandemic, states accustomed to limited numbers of absentee votes have been deluged with ballots mailed by citizens who do not want to risk voting in person.
Some 65.2 million of the record 160 million Americans who voted this year did so by mail, according to an estimate of the US Elections Project.
In Pennsylvania, the Republican-led legislature rejected an effort to let authorities count ahead of Election Day, contributing to the scenario in which its biggest city Philadelphia - a Democratic stronghold - reported returns last.
The Trump campaign has seized on the delay to demand a halt to counting in states where it is behind, notably Pennsylvania whose Republican Party approached the US Supreme Court.
Republicans had been fighting for months against allowing Pennsylvania to count ballots postmarked by Election Day if they arrive by Friday, local time.
In Wisconsin, where Biden eked out a narrow victory, the Supreme Court ruled that only votes received by Election Day would count.
Most states allow rival parties to observe counting but challenges on the rules have taken time, with President Trump's supporters taking particular issue with Philadelphia's rule that watchers stay at least 4.5 meters away due to coronavirus risks.