Hillary Clinton earned the backing of 51 percent of voters who indicated that they are likely to head to the polls in November. | Getty Poll: Clinton leads Trump by 8 in Virginia

Support for Hillary Clinton in Virginia has solidified in recent weeks, with the Democratic nominee leading Donald Trump by eight points among likely voters in the state in a new Washington Post poll out Tuesday.

Clinton earned the backing of 51 percent of voters who indicated that they are likely to head to the polls in November, while Trump took 43 percent. Among registered voters in the head-to-head matchup, the former secretary of state's lead nearly doubles to 14 points—52 percent to 38 percent.

Clinton's lead narrows over Trump in a four-way ballot test with Libertarian nominee Gary Johnson and Green Party nominee Jill Stein. In that scenario, 46 percent of likely voters said they would support Clinton, 39 percent for Trump, 9 percent for Johnson and 3 percent for Stein. Among registered voters in the four-way matchup, Clinton leads Trump by 11 points, 45 percent to 34 percent, while Johnson grabbed 11 percent and Stein took 4 percent.

A majority of 54 percent of Republican and Republican-leaning voters surveyed said they wanted to see someone other than Trump become the party's nominee, while 40 percent said they were behind Trump throughout the primary process. On the Democratic side, meanwhile, 54 percent said they had favored Clinton, while 35 percent indicated a preference for Bernie Sanders.

Neither Clinton nor Trump is seen particularly favorably by the Virginia electorate, although home-state Sen. Tim Kaine drew a net positive favorable rating of 52 percent to 35 percent. Even so, just 26 percent said Clinton's selection of Kaine would make it more likely for them to support the Democratic nominee, while 7 percent said it would make them less likely and a full two-thirds—66 percent—said it would not make a difference. Trump's running mate, Indiana Gov. Mike Pence, is not as well-known in the state.

Clinton holds wide advantages over Trump among registered voters statewide, including in the Washington suburbs (68 percent to 23 percent), the northern exurbs (51 percent to 44 percent) and the Richmond (54 percent to 37 percent) and Tidewater areas (60 percent to 29 percent). Trump's sole regional advantage comes in the southwest part of the state, where he leads Clinton 58 percent to 32 percent.

The poll was conducted Aug. 11-14 via landlines and cellphones, surveying 888 registered voters with a margin of error of plus or minus 4 percentage points and 707 likely voters with a margin of error of plus or minus 4.5 percentage points.