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
Then you should look into the others, like the ones that Harris said she believed: https://www.snopes.com/fact-check/harris-believe-biden-accusers/