These two things are true about the presidential race: The polls currently show Vice President Kamala Harris and former President Donald J. Trump effectively tied. And close polls do not necessarily mean there will be a close result.spin city

This may feel counterintuitive, but the fact is that we are just a very normal polling error away from either candidate landing a decisive victory, especially in the Electoral College.

This is a point my colleague Nate Cohn has made regularly in his election race updates over the last few weeks. But it bears repeating, because a lopsided result when there is an expectation of only razor-thin margins could further fan distrust in the polls and in the electoral process itself.

“You can have a close election in the popular vote and somebody could break 315 Electoral College votes, which will not look close,” said Lee Miringoff, director of the Marist College Institute for Public Opinion. “Or you could get a popular vote that is five points” apart, he added, “which is, by today’s standards, a landslide — a word no one has used this year.”

Since 1998, election polls in presidential, House, Senate and governor’s races have diverged from the final vote tally by an average of six percentage points, according to an analysis from FiveThirtyEight. But in the 2022 midterm elections, that average error was 4.8 points, making it the most accurate polling cycle in the last quarter of a century. If polls were off this year, in either direction, by the same margin, the winning candidate would score a decisive victory.

Based on where the polling averages stood on Monday, if the polls are underestimating Ms. Harris by 4.8 points in each of the seven swing states, she would win every one of them, and a total of 319 electoral votes, compared with only 219 for Mr. Trump. If those same polls underestimate Mr. Trump by the same margin, he would win all the battleground states, for a total of 312 electoral votes. (These calculations assume Ms. Harris and Mr. Trump each win the other states they are favored in.)

Electoral votes if Harris wins all seven swing states:

Electoral votes if Trump wins all seven swing states:

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