I lived there for 8 years - 1st between 89/90th, 91st and Lex and 92nd between 3rd and Lex . . I stand by my post that the Upper East Side is liberal. Maybe not as much as the West Side with Columbia U. and Spanish Harlem but remember that A-A Harlem on the East side is not exactly voting Republican either.
I wrote in my post that it skewed liberal compared to other parts of the country. But they did not vote for DeBlasio which speaks to the more Republican nature of the area. It still has strong Republican clubs there. Yes, liberal Republican clubs but people appear to confuse it with the nutty Upper Westside.
The Upper East Side was more or less solidly GOP and was cal,led THE SILK STOCKING DISTRICT and it sent GOPers to Congress all the time! It's also where the GOP Clubs, including THE YOUNG REPUBLICANS, was and still is located! And when Mr. Nixon was elected president, many from the latter organization worked on his campaign and were invited to the Inaugurals and ball!
And Columbia had less than nothing at all to do with the UWS being liberal and then, somewhat later, faaaaaaaaaaaaaar lefty/Commie!