At 1:38 am on Wednesday, November 9, 2016 in New York, at the New York Convention Center under the glass ceiling where Hillary Clinton planned to celebrate her victory, the most important warning from the Associated Press (AP) office came to the cell phone: “Donald Trump won Pennsylvania.” With that message it is clear that a Republican will be the next president. Only a few hours had passed since polls closed that Tuesday.
In November 2020, AP's warning from the crucial swing state of Pennsylvania came four days after the election. At 11:25 a.m. on the East Coast on Saturday, November 7, the agency announced that Joe Biden had won Pennsylvania in Tuesday's election and a minute later. has won the presidency of the United States. What happened in four years that Pennsylvania's results took so long to be known?