EXPLAINER: Calling a race is tricky: How AP does it
WASHINGTON — In the 2020 U.S. general election, The Associated Press will declare winners in more than 7,000 races – starting with the White House and reaching down the ballot to every seat in every state legislature.
To do so, AP uses a 50-state network of stringers who collect votes at a local level, while other AP journalists gather results from state or county websites, as well as via electronic data feeds from states.
But how does the AP know when to call a race for a candidate? And more importantly, even, when not to call it? It’s a complex formula that involves looking at the number of votes counted, historical data and AP VoteCast, a wide-ranging survey of the American electorate, among other things.
TAKING EARLY VOTERS INTO ACCOUNT