Democratic presidential candidate Hillary Clinton holds a five-point lead over Republican Donald Trump in the latest Post-ABC Tracking Poll overall.
The poll also suggests that Clinton also has clear advantages on several personal attributes, reports the Washington Post.
Enthusiasm for Clinton and Trump now stands almost equal but significantly lower than it was among the supporters of Barack Obama and Mitt Romney in the last presidential election.
But Clinton has a clear advantage in affirmative support, with 55 per cent of her backers saying the main reason they are voting for her is because they support her as compared to 43 per cent of Trump voters.
More Trump voters say they are voting for him mainly because they oppose Clinton.
The Post-ABC poll finds Clinton with a 48 per cent to 43 per cent lead in overall vote preferences, just on the edge of statistical significance but continuing a clear trend of improvement since the race was locked at 46 per cent at the beginning of last week.
Clinton has benefited from more united support from non-white voters as well as with "pure" political independents who do not lean toward either party.
Clinton was up three points in a CBS News/New York Times poll, two points in a Fox News poll, one point in a McClatchy-Marist poll and tied in the IBD/TIPP daily poll released Saturday - results that lean in her favor, but not by a significant margin.
The new Post-ABC poll asked the voters which candidate they favored across five personal attributes debated during the campaign, including honesty, empathy, qualifications, moral character and temperament.
Clinton holds clear advantages on four of the five qualities, some by very large margins. By 58 percent to 32 per cent, more voters prefer Clinton's personality and temperament, and by 55 percent to 36 per cent, more say she has better qualifications for the job than Trump does.
Trump also holds an eight-point advantage on the question of which candidate has a better understanding of the "problems of people like you," and a seven-point lead when voters are asked which candidate has stronger moral character.
But Trump maintains a 44 per cent to 40 per cent edge over Clinton on which candidate is more honest and trustworthy, though that result is down from an eight-point edge earlier this week after the FBI announced the discovery of additional emails that might be relevant to from their investigation of her use of a private server while secretary of state.
While voter preference on candidate qualities seemed clear, they were more closely split on who they trust to deal with major policy issues regarding economy, terrorism, immigration, health care or corruption.
There are sizable minorities of Trump and Clinton supporters who do not vouch for some of their personal qualities. About 82 per cent of Clinton supporters say she is more honest and trustworthy than Trump, while 18 per cent do not, saying neither is better than the other or that they have no opinion. Defections from Trump are sharpest on the issue of personality and temperament, with 27 per cent of his backers saying he does not have a better personality and temperament than Clinton; 17 per cent say he is not more qualified.
This Post-ABC News poll was conducted on cellular and landline phones from 1-4 November, among a random national sample of 1,685 likely voters and has a margin of sampling error of plus or minus 2.5 percentage points.