Recent updates from ABC News’s 538 polling index suggest that the two presidential candidates are about as neck-and-neck as they can be, with Donald Trump having a 52 percent chance of winning the election, and Kamala Harris at 48 percent.

This news may surprise political pundits, who have watched an incredibly close yet stable race suddenly draw even closer. On both sides, anomalies have abounded, creating an atmosphere of confusion among experts.

A strong debate performance from Harris in September did little to shake up the polls, and Democratic polling gains were lackluster during the Democratic National Convention despite typically being higher at the same point in previous presidential races.

Trump’s campaign season has been even more abnormal: Surviving an assassination attempt just prior to the Republican National Convention did little to sway the vote in his favor. President Joe Biden’s choice to drop out of the race led to a power vacuum that Harris quickly exploited, minimizing any Republican gains while putting the polls in her favor.

Harris’ quick acting has allowed her to maintain a narrow lead of two percent in national polls, according to the New York Times’ polling index. However, the race will likely be decided by several swing states in which neither candidate holds an advantage of more than one percent. Pennsylvania, Wisconsin, North Carolina, Michigan, and Nevada remain up for grabs, with Trump maintaining a two percent headway in Georgia and Arizona.

The competition for the highest office in the land has never had such high levels of uncertainty in the polls. With early voting beginning in all but one state, many Americans have made up their minds, but it seems that the few, still undecided voters might just have the greatest impact on the next four years of American politics.