Hillary Clinton is more disliked than she has ever been.

The Washington Post-ABC News poll , which has been querying Americans about Clinton since before she entered the White House as first lady nearly 25 years ago, found voters this week hold a record high unfavorable impression of the Democratic presidential nominee.

The survey, released Wednesday, shows just 41 percent of Americans have a favorable impression of Clinton, while 56 percent say they have an unfavorable impression. That figure exceeds her previous all-time low favorable of 42 percent in July, with her unfavorable rating of 55 percent.

Clinton's falling popularity comes amid a long slide over the past three years since she left the State Department and began preparing to make a second run at the White House.

Coming off a previous record low of 44 percent during her bitter primary fight with then-Sen. Barack Obama in 2008, Clinton's approval climbed to a personal best of 67 percent in 2013 at the end of her tenure as the nation's top diplomat.

Her new low, while statistically identical to her poor showing in June, appears even more stark in contrast to the post-Democratic National Convention bump that saw the nominee improve her popularity to a yearlong high, although still underwater, 48 percent to 50 percent.

Intriguingly, the change came among some of the groups Clinton counts as her best sources of support: women, Hispanics and liberals, with her favorability dropping 9 points, 16 points and 13 points, respectively.

While it's possible the slide is a matter of the post-convention bump dissipating, Clinton has also endured several weeks of negative headlines relating to the Clinton Foundation and her use of a private email server as secretary of state.

But as poor as Clinton's favorability ratings are, she can take comfort that her Republican rival, Donald Trump, still fares worse.