General Discussion

According to a computer analysis by The New York Times, Mr. Trump’s rally speeches now last an average of 82 minutes, compared with 45 minutes in 2016. Proportionately, he uses 13 percent more all-or-nothing terms like “always” and “never” than he did eight years ago, which some experts consider a sign of advancing age.

Similarly, he uses 32 percent more negative words than positive words now, compared with 21 percent in 2016, which can be another indicator of cognitive change. And he uses swearwords 69 percent more often than he did when he first ran, a trend that could reflect what experts call disinhibition. (A study by Stat, a health care news outlet, produced similar findings.)

Mr. Trump frequently reaches to the past for his frame of reference, often to the 1980s and 1990s, when he was in his tabloid-fueled heyday. He cites fictional characters from that era like Hannibal Lecter from “Silence of the Lip” (he meant “Silence of the Lambs”), asks “where’s Johnny Carson, bring back Johnny” (who died in 2005) and ruminates on how attractive Cary Grant was (“the most handsome man”). He asks supporters whether they remember the landing in New York of Charles Lindbergh, who actually landed in Paris and long before Mr. Trump was born.

He seems confused about modern technology, suggesting that “most people don’t have any idea what the hell a phone app is” in a country where 96 percent of people own a smartphone. If sometimes he seems stuck in the 1990s, there are moments when he pines for the 1890s, holding out that decade as the halcyon period of American history and William McKinley as his model president because of his support for tariffs.