If you read the whole article at your link, it states that the couple eloped to his family’s home in Uganda in February. Guess they wanted to get that done before the June primary.
“Mamdani, 33, eloped with artist and animator Rama Duwaji, 27, in February.”
This man’s got some cash to buy lots of champagne at his Family’s compound & then for his NYC constituents, too.
Supported all these years by his parents.