Five 2020 Democratic presidential candidates are leading President Trump Donald John TrumpFederal prosecutor speaks out, says Barr 'has brought shame' on Justice Dept. Former Pence aide: White House staffers discussed Trump refusing to leave office Progressive group buys domain name of Trump's No. 1 Supreme Court pick MORE in head-to-head match-ups, according to a new poll released Wednesday.

The ABC News/Washington Post poll shows former Vice President Joe Biden Joe BidenFormer Pence aide: White House staffers discussed Trump refusing to leave office Progressive group buys domain name of Trump's No. 1 Supreme Court pick Bloomberg rolls out M ad buy to boost Biden in Florida MORE with a comfortable 16-point lead over Trump among all survey respondents.

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Other Democrats with double-digit leads over Trump are Sen. Bernie Sanders Bernie SandersSirota reacts to report of harassment, doxing by Harris supporters Republicans not immune to the malady that hobbled Democrats The Hill's Morning Report - Sponsored by Facebook - Republicans lawmakers rebuke Trump on election MORE (I-Vt.) by 12 points and Sen. Elizabeth Warren Elizabeth WarrenOvernight Defense: Appeals court revives House lawsuit against military funding for border wall | Dems push for limits on transferring military gear to police | Lawmakers ask for IG probe into Pentagon's use of COVID-19 funds On The Money: Half of states deplete funds for Trump's 0 unemployment expansion | EU appealing ruling in Apple tax case | House Democrats include more aid for airlines in coronavirus package Warren, Khanna request IG investigation into Pentagon's use of coronavirus funds MORE (D-Mass.) by 11 points.

Sen. Kamala Harris Kamala HarrisTexas Democratic official urges Biden to visit state: 'I thought he had his own plane' The Hill's Campaign Report: Biden on Trump: 'He'll leave' l GOP laywers brush off Trump's election remarks l Obama's endorsements A game theorist's advice to President Trump on filling the Supreme Court seat MORE (D-Calif.) and South Bend, Ind., Mayor Pete Buttigieg Pete ButtigiegBillionaire who donated to Trump in 2016 donates to Biden The Hill's Morning Report - Sponsored by Facebook - GOP closes ranks to fill SCOTUS vacancy by November Buttigieg stands in as Pence for Harris's debate practice MORE also hold leads over the president.

Biden, the current front-runner in the crowded Democratic field, has maintained a steady lead over Trump in the poll, beating the president by 10 points when the poll was conducted in July.

Among registered voters, Biden leads Trump by 15 points, and Sanders has a 9-point edge.

ABC News notes that the changes in the poll could be due to declines in Trump’s support rather than gains by any of the individual Democrats.

The survey found Trump has an unfavorable rating of 57 percent compared to a favorability rating of 40 percent.

The poll is in line with several national polls that have shown Trump trailing several Democratic candidates, most notably Biden.

Trump has repeatedly slammed the polls, instead referring to his own internal polling, which he says is more favorable.

Trump on Wednesday slammed the poll in a tweet, calling it "a phony suppression poll, meant to build up their Democrat partners."

....This is a phony suppression poll, meant to build up their Democrat partners. I haven’t even started campaigning yet, and am constantly fighting Fake News like Russia, Russia, Russia. Look at North Carolina last night. Dan Bishop, down big in the Polls, WINS. Easier than 2016! — Donald J. Trump (@realDonaldTrump) September 11, 2019

The Washington Post/ABC News poll was conducted over the phone from Sept. 2-5 and surveyed a random national sample of 1,003 adults. The margin of error for the poll is 3.5 percentage points.