Hillary Clinton Hillary Diane Rodham ClintonREAD: Cohen testimony alleges Trump knew Stone talked with WikiLeaks about DNC emails County GOP in Minnesota shares image comparing Sanders to Hitler Holder: 'Time to make the Electoral College a vestige of the past' MORE's lead over Donald Trump Donald John TrumpREAD: Cohen testimony alleges Trump knew Stone talked with WikiLeaks about DNC emails Trump urges North Korea to denuclearize ahead of summit Venezuela's Maduro says he fears 'bad' people around Trump MORE in Florida has shrunk to 5 points from last month's edge of 9, a Monmouth University survey released Tuesday reported.

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In a four-way race, the Democratic presidential nominee has 46 percent support to Trump's 41 percent. Libertarian nominee Gary Johnson Gary Earl JohnsonPotential GOP primary challenger: Trump's 'contempt for the American people' behind possible bid The Hill's 12:30 Report — Presented by Kidney Care Partners — Trump escalates border fight with emergency declaration Former Mass. governor takes step toward Trump primary challenge MORE receives 6 percent support, while only 1 percent plans to vote for the Green Party's Jill Stein.

A month ago, Monmouth reported Clinton with 48 percent to Trump's 39.



Clinton's core support among likely Florida voters comes from Hispanic, black and Asian communities, while the Republican nominee holds a healthy 18-point lead among whites.



“Although Clinton’s lead is smaller than in our last poll, she is maintaining her advantage in Florida given the ominous state of her poll standing last week,” said Monmouth's Patrick Murray.



The poll also found that Trump's recent attempt to end the "birther" controversy by reversing on his long-standing belief that President Obama may not have been born in America "does not seem to have had the intended effect.”



While 76 percent of Floridians said that their vote will not be impacted by Trump's birther reversal, 18 percent said that it makes them less likely to vote for the GOP nominee.

In Florida's Senate race, incumbent Republican Marco Rubio Marco Antonio RubioWhite House pleads with Senate GOP on emergency declaration Sixteen years later, let's finally heed the call of the 9/11 Commission Schumer urges GOP to reject Trump's 'destructive' national emergency MORE holds a narrow 2-point lead over his Democratic challenger, Rep. Patrick Murphy, 47 percent to 45 percent.

Last month, the same poll found Rubio ahead by 48 to 43 percent.

The Monmouth University Poll surveyed a pool of 400 likely Florida voters from Sept. 16 to 19. Its margin of error is 4.9 percentage points.