Poll: Clinton has 5-point lead over Trump
© Greg Nash

Democratic presidential nominee Hillary ClintonHillary Diane Rodham ClintonCountering the ongoing Republican delusion Republicans seem set to win the midterms — unless they defeat themselves Poll: Democracy is under attack, and more violence may be the future MORE leads Republican Donald TrumpDonald TrumpOmar, Muslim Democrats decry Islamophobia amid death threats On The Money — Powell pivots as inflation rises Trump cheers CNN's Cuomo suspension MORE by 5 points, according to an NBC News/SurveyMonkey weekly election tracking poll.

ADVERTISEMENT

Clinton is favored by 45 percent of likely voters and Trump is backed by 40 percent in a four-way matchup. Clinton's lead over the GOP nominee is unchanged from last week's poll.

Libertarian nominee Gary JohnsonGary Earl JohnsonBiden broadened Democratic base, cut into Trump coalition: study New Mexico lawmakers send recreational marijuana bills to governor Judge throws out murder convictions, releases men jailed for 24 years MORE is backed by 10 percent and Green Party nominee Jill Stein is supported by 3 percent of likely voters.

In a head-to-head matchup, Clinton has a 7-point lead over her Republican rival, 51 to 44 percent.

Clinton has an advantage among voters under age 40 in a four-way matchup, 49 to 26 percent. Johnson is backed by 16 percent of voters ages 18 to 29 and Stein is supported by 7 percent. 

Among voters ages 65 and over, Trump has a slight lead over Clinton, 47 to 43 percent. Only 6 percent of voters ages 65 and older are supporting Johnson or Stein, according to the poll.

The poll was conducted from Sept. 19 to 25 among 13,598 adults who are likely to vote. The margin of error is 1.1 percent.

According to the RealClearPolitics average of polls, Clinton has a 1.7-point lead over Trump in a four-way matchup, 42.9 to 41.2 percent.

Several recent polls have shown the candidates in a tight race for the White House ahead of the first presidential debate Monday night.