Can 0.03% of US votes really swing the presidential election?

Visual explainer: Hundreds of millions of Americans cast their votes in the US election, but a tiny fraction of those can swing the race for one candidate or another

In recent years there has been growing criticism of the electoral college system in the US because it has allowed a tiny number of Americans to determine the outcome of the presidential election.

In 2020, about 43,000 votes among Wisconsin, Georgia and Arizona - a mere 0.03% of the votes cast nationwide - allowed Biden to win. In 2016, about 80,000 combined votes gave Trump his winning margins in key swing states.