Trump's campaign is sliding off the edge of the cliff.

Vice President Kamala Harris beats former President Donald Trump in three
surveys taken after the Democratic National Convention, adding to her
winning polling streak, though the size of her lead remains unchanged
since before the convention.
DNC at United Center.

Vice President Kamala Harris delivers a speech at the Democratic National
Convention on Aug. 22. ... [+]Los Angeles Times via Getty Images
Key Facts

Harris led Trump by two points�47%-45%�in the latest Economist/YouGov
poll taken Sunday through Tuesday, which allowed registered voters to
pick independents Jill Stein and Cornell West, roughly similar to
Harris� three-point advantage about a week earlier and her two-point lead
two weeks ago (the most recent poll had 1,367 respondents, margin of
error 3.2).

Harris is up by one point, 47% to 46% with 4% undecided and 2% who
wouldn�t vote, in an Aug. 22-26 Yahoo News/YouGov online survey of around
1,200 registered voters (margin of error 3)�virtually unchanged from the
46%-46% tie between Harris and Trump in a survey by the same pollsters
conducted after the Republican National Convention, but before President
Joe Biden dropped out of the race.

Harris leads Trump by a larger margin�48% to 44%�in an Aug. 23-25 Morning
Consult survey of registered voters, findings that mirror the group�s
Aug. 16-18 survey taken before the Democratic National Convention, which
concluded Thursday in Chicago.

The surveys are the latest to show a shift in Democrats� favor since
Harris� entrance into the race last month.

Harris led Trump 49% to 45% among registered voters and 51% to 45% among
likely voters in a poll by Ipsos, ABC News and The Washington Post
released Aug. 18.

In a CBS and YouGov poll, also released Aug. 18, Harris had a three-point
edge over Trump among likely voters (51% to 48%), though the candidates
were tied at 50% in battleground states.

Harris leads 50% to 46% in an Emerson College poll of 1,000 likely voters
released Aug. 15.

Just one major poll in recent weeks, taken by Fox News and released Aug.
15, found Trump leading, 50% to 49% among registered voters.
Big Number

1.7. That�s how many points Harris leads Trump by in RealClearPolitics�
latest polling average. Meanwhile, FiveThirtyEight�s weighted average
shows Harris with a 3.4-point lead.
Contra

Trump led Harris in at least eight other polls after President Joe Biden
dropped out of the race, but most show Harris denting Trump�s lead over
Biden and her approval rating ticking up since she announced her
candidacy. Trump led Harris by one point (48% to 47%) in a New York
Times/Siena poll conducted July 22-24, two points (49% to 47%) in a July
23-25 Wall Street Journal poll and by two points (47% to 45%) in a
HarrisX/Forbes online survey released June 26.
Surprising Fact

A Monmouth University poll released Aug. 14 found Democratic enthusiasm
has nearly doubled since Harris� entrance into the race, from 46% in June
to 85% now, while enthusiasm among Republicans has stayed stagnant at
71%.
How Does Harris Perform Against Trump In Swing States?

Harris leads Trump by one point overall in the seven battleground states
likely to decide the election: Michigan, Pennsylvania, Wisconsin, Nevada,
Arizona, North Carolina and Georgia, according to a Cook Political Report
survey. Harris leads Trump in five of the seven states, is tied with him
in Georgia and is trailing Trump by three points in Nevada, the Cook poll
found.