Clinton's lead narrows in national poll
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Democratic presidential nominee Hillary ClintonHillary Diane Rodham ClintonJill Biden takes starring role at difficult Olympics Club for Growth goes after Cheney in ad, compares her to Clinton Sanders to campaign for Turner in Ohio MORE's lead over Donald TrumpDonald TrumpNew Capitol Police chief to take over Friday Overnight Health Care: Biden officials says no change to masking guidance right now | Missouri Supreme Court rules in favor of Medicaid expansion | Mississippi's attorney general asks Supreme Court to overturn Roe v. Wade Michael Wolff and the art of monetizing gossip MORE has narrowed, according to the latest national poll.

Clinton leads the GOP nominee by 4 points, 48 to 44 percent, among registered voters in the NBC News/Survey Monkey tracking poll released Tuesday morning, down 2 points from last week.
Clinton's lead is even smaller in a four-way matchup. In that scenario, Clinton leads by just 2 points, 42 to 40 percent.
Clinton has seen a tightening of polls recently as she battles criticism over her "basket of deplorables" comment and the delayed release of her pneumonia diagnosis over the weekend.
Her lead in the NBC survey was 10 points about five weeks ago.
Since then, Trump has made up ground among independents who don't lean toward either major party.
Clinton and Trump have similar favorability numbers in the poll, though both are viewed unfavorably by a majority of registered voters.  
Thirty-eight percent have a favorable impression of Trump and 39 percent have a favorable impression of Clinton, while 59 percent view Clinton unfavorably and 60 percent view Trump unfavorably. 
The survey of 16,220 registered voters was conducted online Sept. 5–11 with an estimated margin of error of 1.1 percentage points.