These are the winners of the latest presidential polls between Trump and Harris

Harris and Trump are tied at 47%, according to a New York Times/Siena poll of likely voters released on September 19. It found that a majority of voters across all demographics gave Harris's performance in the debate a positive rating: 67% overall said she did well, compared with 40% who said the same about Trump (Times/Siena polls from early September to late July had Trump ahead of Harris, 48% to 47%).

Harris has a slight lead in two other polls from September 19: she is ahead by four percentage points in a YouGov/Economist poll of registered voters (49-45%) and by two points in the Fox News poll of likely voters (50-48%). This is a slight shift after Harris was one percentage point behind in a Fox poll in early August and only two percentage points ahead in a YouGov poll in early September.

In a new Forbes/HarrisX poll of 3,018 registered voters from Sept. 11-13 (margin of error 1.8), Harris was three percentage points ahead of Trump, 48% to 45%, while 8% were undecided. In a pre-debate HarrisX poll of 1,003 registered voters from Sept. 9-10 (margin of error 3.1), the two were tied at 45%, while 10% were undecided.

In a Monmouth University poll of 803 registered voters conducted Sept. 11-15 (margin of error 3.9), 49 percent said they would definitely or probably vote for Harris, while 44 percent said the same about Trump – results nearly identical to the group's August poll, in which Harris led 48 percent to 43 percent.

Harris leads Trump 51% to 45% in Morning Consult's Sept. 13-15 poll of likely voters, up three percentage points from before the Sept. 10 debate and her largest lead yet in the group's weekly polls (in a one-day Morning Consult poll conducted Sept. 11, immediately after the debate, Harris led among likely voters 50% to 45%).

In an ABC News/Ipsos poll conducted a few days after the Sept. 11-13 debate, Harris led among likely voters 52% to 46% and among registered voters 51% to 47%, essentially unchanged from her six-point lead among likely voters in ABC/Ipsos polls in late and early August—even though 63% of Americans said Harris won last week's debate.

Even after the debate, Harris remained ahead by five percentage points – 47% to 42% – in a two-day Reuters/Ipsos poll of registered voters that ended September 12 (in late August, a Reuters/Ipsos poll had shown Harris ahead by 45% to 41%).

Polls ahead of the debate showed that Harris's surge in the polls appeared to be stagnating. For example, an NPR/PBS/Marist poll of registered voters from Sept. 3-5 showed Harris leading Trump 49% to 48%, down from her three-point lead in August. But among those who say they definitely plan to vote, she still led him 51% to 48%.

In an Emerson College poll of likely voters on Sept. 3-4, Harris was ahead by two percentage points, 47% to 49%, down slightly from her four-point lead in Emerson's August poll.

In a Wall Street Journal poll released on August 29, Harris led Trump by 48 percent to 47 percent. This was the first time in more than a year that Trump had trailed in a Journal poll – a reversal from Trump's 49 percent to 47 percent lead a month earlier (the poll surveyed registered voters from August 24 to 28, with a margin of error of 2.5 percentage points).

In a Suffolk/USA Today poll conducted Aug. 25-28, the vice president led Trump among likely voters by five percentage points — 48% to 43%. That's a huge shift from Trump's 41% to 38% lead over President Joe Biden, which came shortly after Biden's poor performance at the June debate (the latest poll's margin of error is 3.1 points).