Some related links, which I should have included in the first place!!
https://www.thenation.com/article/politics/zohran-mamdani-democratic-party-establishment/
https://www.axios.com/2025/06/26/democrats-zohran-mamdani-meltdown-new-york
That's not even true. Less than 50% of the people who voted, voted for Trump.
He didn't do much better than 2020 when he lost. The U.S. population increased by 2.5% from 2020 to 2024.
Numerically with the population growing by the 2.5% we saw a 4.5% drop in voting in 2024.
Reasons are all speculation.