WASHINGTON - Millions of votes that have been cast already in the U.S. presidential election point to an advantage for Hillary Clinton in critical battleground states. Data compiled by The Associated Press also show signs of Democratic strength in traditionally Republican territory.

The strong early-voting turnout by those likely to support Clinton could leave Donald Trump with virtually no path to the 270 electoral votes needed for victory.

Clinton is showing strength in Florida and North Carolina, both must-win states for Trump, as well as the battleground states of Nevada, Colorado and Arizona. There are even favorable signs for Clinton in Republican-leaning Utah and Texas.

Early voting is underway in 37 states. More than 12.5 million votes have been cast, far higher than the rate in 2012.