Eliza Collins

USA TODAY

Hillary Clinton continues to ride high in battleground states, according to new polls in Colorado, Iowa and Virginia.

In one-on-one matchups between Donald Trump and Clinton, the Democratic nominee is ahead by double-digits in Virginia and Colorado. Clinton also edges Trump in Iowa, according to Quinnipiac University polls out Wednesday.

Clinton came out ahead of Trump among likely Colorado voters, 49%-39%, in a head-to-head matchup. When third-party candidates were added, Clinton led Trump 41% to 33%, while Libertarian candidate Gary Johnson had 16% support and Green Party candidate Jill Stein came in with 7%.

Clinton also led Trump by 12 points in Virginia, the home state of her running mate, Sen. Tim Kaine. In a four-way match-up, Clinton had 45%, Trump had 34%, Johnson had 11% and Stein had 5%.

Trump revamps his team and message, but is it too late?

"The scary thing for Republicans in the Virginia and Colorado numbers is that they show a possible Hillary Clinton landslide in states that only eight years ago leaned GOP and before that had been GOP strongholds," said Peter A. Brown, the Quinnipiac poll's assistant director.

But the race was tighter in Iowa, with Clinton ahead by only three points, 47%-44%. Her lead was more narrow when all four candidates were included. Clinton came in at 41%, Trump at 39%, Johnson had 12% while Stein had 3%.

The telephone polls were conducted Aug. 9-16. The Colorado poll included 830 likely voters and had a margin of error of plus or minus 3.4 points. In Iowa, 846 likely voters were surveyed with a margin of error of plus or minus 3.4 points. And 808 likely voters were polled in Virginia, where the margin of error was 3.5 points.

There was some good news for Trump on Wednesday. A Monmouth University poll of Indiana found he was ahead of Clinton by 11 points in the state, 47%-36%. Trump’s running mate is the state's governor, Mike Pence, and the state generally votes Republican (though it did support Barack Obama in 2008).