The poll produced by Langer Research Associates, with fieldwork by Ipsos, finds that Harris is up 52%-46% among likely voters and 51%-47% among registered voters in the poll taken Sept. 11-13. The race remains unchanged from her six-point leads with likely voters in late August and early August ABC/Ipsos surveys.

The poll also shows that Taylor Swift’s endorsement has done little to move the needle. Only six percent of voters answered that the singer-songwriter’s endorsement of Harris makes them more likely to support her; 13% said it made them less likely to support her and 81% said it made no difference. Voters who responded negatively to the endorsement were Trump supporters, according to the results.

The poll found Harris’s personal appeal improved: 37% say the debate made them feel more favorably toward her, while 23% less favorably. Former President Donald Trump did not receive the same benefit, voters said 2-1 that the debate made them see him less favorably. 

However, those who found Harris more favorable were almost exclusively already in her base. Sixty-nine percent of Democrats and Democratic-leaning Independents say the debate made them see her more favorably. Only 34% of Republicans and GOP-leaning Independents see Trump more favorably. 

Analysis of the results finds most voters appear to be set with their choice. Seventy-three percent of Trump’s supporters said they have supported him all year. Seventeen percent answered they were previously undecided but are now supporting Trump. It’s similar with Harris’s support: two-thirds of her supporters say they’ve been backing her since she declared her candidacy. A quarter answered they were undecided at one time.

On the issues, Trump is seen as better for issues like the economy and inflation, which many said are the most important issues in the election. Harris is viewed as better on issues like healthcare, abortion, and protecting democracy.

The ABC News poll comes as a handful of new public opinion polls released after the debate found Harris leading anywhere between 2 percentage points and 5 percentage points, although many were within the margin of error.

While national surveys give important views of the electorate, the state-by-state results of the Electoral College will determine the winner.