Story highlights A new poll shows Hillary Clinton with a 16-point lead over Donald Trump in Virginia

Recent polling suggests the battleground state is falling further out of reach for Trump

(CNN) Hillary Clinton has a big lead over Donald Trump in Virginia, according to a new poll released Tuesday, which shows the Democratic nominee with a 16-point advantage in the state.

The Roanoke College poll found Clinton leading Trump 48% to 32% among likely Virginia voters in a four-way race. Libertarian Gary Johnson gets 8% support, while Green Party candidate Jill Stein is backed by 3%. In a two-way race, Clinton leads Trump 55% to 36%.

That's in line with other recent polling of Virginia conducted over a similar time frame (August 7-17 for the Roanoke poll). A Quinnipiac poll taken within the same stretch found Clinton leading by 12 points, 50%-38%, while Washington Post poll showed Clinton up 51% to 43%.

Clinton performs better with her base than Trump in Virginia, as 91% of Democrats say they will vote for her, compared to 78% of Republicans who say they'll vote for Trump. Clinton's numbers have improved since May, while Trump's have declined over the same period. The former Secretary of State is winning Independents 43% to 25%.

Clinton has also seen her favorable rating increase, though she still remains underwater -- 39% now say they have a favorable opinion of the Democratic nominee, and 45% say they view her unfavorably (up from 35%-50% in May). Trump, on the other hand, has seen his favorable rating remain at 23%, while the percentage of those saying they view him unfavorably grew from 56% in May to 63%.

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