The 2024 Election Is Exceedingly Close, And The Polls Are All Over The Place

The closest election of the century keeps getting closer. Two weeks ago, 538's forecast of the presidential election gave Vice President Kamala Harris just a 58-in-100 chance of defeating former President Donald Trump on Nov. 5. Now — just 18 days away from Election Day — our forecast gives Trump the bare advantage in the race with a 52-in-100 chance to win.

The presidential race is close no matter which way you slice it. This is both because the polls are exceedingly tight right now and because there is still uncertainty about how the final two and a half weeks of the campaign will unfold. As we have written, the race can change quickly in the final weeks. For example, in the last few weeks of the 2016 and 2020 campaigns, polls moved by about 4 and 2 points, respectively, toward Trump.

The value our forecast adds over our polling averages is that it attempts to quantify how likely such a shift is — and how inaccurate polls might be even on Election Day itself. But this also means that as the time remaining for people to change their minds decreases, the forecast's uncertainty about the race also decreases — and very quickly.

But because the polls are so tight right now, if they don't budge, the forecast won't either. If you run our presidential election forecast in "nowcast" mode — where we pretend the election is being held today and remove all volatility stemming from how many days are left until Nov. 5 — Trump still has a 52-in-100 chance of winning.

Finally, I have to remind you that a close election in terms of the odds does not necessarily mean that the final outcome will be close. If the polls miss by a historically normal amount, either candidate could easily win with 300 Electoral College votes. While we can say that this is one of the closest elections in modern history in the polls, we can't guarantee that it will go into the history books as one of the closest in terms of votes.