Clinton, who will face Trump in Las Vegas on Wednesday night in their third and final debate, garners 46 percent to Trump’s 36 percent. Libertarian nominee Gary Johnson draws 5 percent, while Green Party standard-bearer Jill Stein gets 2 percent.

Hillary Clinton holds a 10-point national lead over Donald Trump with less than three weeks remaining in the race for the White House, according to a Colby College-Boston Globe poll released Wednesday.

The poll comes as Trump has increasingly sought to cast doubt on the validity of the election, suggesting — without any evidence — that the vote could be rigged and lumping national Republican leaders such as House Speaker Paul Ryan in with the news media as complicit in a grand scheme.


Clinton’s camp has been projecting optimism in recent weeks, devoting resources to traditionally Republican states such as Arizona as polls indicate she stands a chance of victory.

The Colby College-Boston Globe poll falls roughly in line with other similar national surveys. A RealClearPolitics average of polls taken between Oct. 6 and Oct. 17 pegged Clinton up seven points.

In the new survey, Clinton continues to draw support from younger people and voters of color. Among respondents ages 18 to 34, 55 percent said they planned to vote for Clinton. Voters ages 65 and older broke nearly evenly, 41 percent for Clinton and 40 percent for Trump.

While Trump leads Clinton by six points among white voters, she opened up wide margins with black and Hispanic voters, winning 85 percent and 60 percent, respectively. Just six percent of black voters said they would vote for Trump.

Among those who said they regularly attend church services, Trump led Clinton, 47 percent to 38 percent.

The poll, conducted online by SurveyUSA among 845 likely voters between Oct. 11 and Oct. 14, carries a margin of error of 3.4 percentage points.


Jim O’Sullivan can be reached at jim.osullivan@globe.com.