AP has declared winners in elections for nearly 180 years. This is why and how race calls are made

The Associated Press will compile votes and declare winners in elections across the U.S. on Tuesday, just as the news ...

The voting system we use can determine the election winner. Here's how

Ahead of Election Day tomorrow, millions of ballots are being cast in statewide, local and special elections. So, today, we're revisiting an episode asking: What would happen if the rules of our ...