https://www.theguardian.com/us-news/2024/apr/26/allan-lichtman-prediction-presidential-election

He has been called the Nostradamus of US presidential elections. Allan Lichtman has correctly predicted the result of nine of the past 10 (and even the one that got away, in 2000, he insists was stolen from Al Gore). But now he is gearing up for perhaps his greatest challenge: Joe Biden v Donald

They looked at every presidential election since Abraham Lincoln’s victory in 1860, combining Keilis-Borok’s method recognising patterns associated with stability and earthquakes with Lichtman’s theory that elections are basically votes up or down on the strength and performance of the party that holds the White House.

They (Lichtman and Vladimir Keilis-Borok) came up with 13 true/false questions and a decision rule: if six or more keys went against the White House party, it would lose. If fewer than six went against it, it would win. These are the 13 keys, as summarised by AU’s website:
https://www.american.edu/cas/news/13-keys-to-the-white-house.cfm