Clinton leads Trump by 4 points in national poll

Hillary ClintonHillary Diane Rodham ClintonKoch brothers group won't back Stewart in Virginia Giuliani says his demand for Mueller probe to be suspended was for show Poll: GOP challenger narrowly leads Heitkamp in North Dakota MORE leads Donald TrumpDonald John Trump20 weeks out from midterms, Dems and GOP brace for surprises Sessions responds to Nazi comparisons: 'They were keeping the Jews from leaving' Kim Jong Un to visit Beijing this week MORE by 4 points in a Pew Research Center poll released Thursday that includes third-party candidates.

Forty-one percent of registered voters lean toward or support Clinton, the Democratic presidential nominee, while 37 percent back Trump, the Republican.

Another 10 percent support Libertarian nominee Gary JohnsonGary Earl JohnsonWithout ranked voting, Pennsylvania's slim margins hide voters' preferences If weed is no longer a crime, why are people still behind bars? Gary Johnson: Trump admin marijuana policy shift could cost him reelection MORE, and 4 percent are behind Green Party nominee Jill Stein.

Clinton holds a 19-point lead among women, 49 percent to 30 percent, but Trump is ahead by 12 points among men, 45 percent to 33 percent.

Clinton leads 59 percent to 21 percent among those with postgraduate degrees, and Trump leads 41 percent to 36 percent among those with some or no college experience.

A majority of registered voters, 55 percent, say Trump would make a poor or terrible president, compared with 45 percent who say the same of Clinton.

Thirty-one percent say Clinton would make a good or great president, while 27 percent say the same of Trump. The rest consider the candidates to be average.

Trump supporters overwhelmingly say, 81 percent to 11 percent, that life is worse now for Americans than it was 50 years ago.

Clinton supporters largely take the opposing view, with 59 percent saying life is better than five decades ago and 19 percent saying it is worse.

The survey of 2,010 adults, including 1,557 registered voters, was conducted Aug. 9-16 with a margin of error of 2.5 points for the total sample and 2.8 points for registered voters.