Original article source: More than 1 in 4 voters already cast ballots as key swing state smashes records A quick Yahoo News guide to what the latest polls can — and can’t — tell you about who will win the 2024 presidential election.

With former President Donald Trump’s encouragement, Republicans are voting early again, flocking to the polls for in-person voting ahead of Election Day and helping push the national number to nearly 19 million.

Campaigns usually want their voters to cast ballots ahead of Election Day so they can focus their resources on getting more marginal supporters to the polls at the last minute. Republicans excelled at that before Trump turned against mail voting in 2020,