This is the stat that comes up when I google: Some 53% of U.S. adults said they were fans of Swift, and 16% identified themselves as “avid” fans of the star.

Let's say it is half that. 1 out 4 people in the US alone, love her. Just interesting.   

 Patric bet-davids did an analysis on the endorsement:

https://xcancel.com/patrickbetdavid/status/1834262483315687846#m 

 interesting, i am curious IF she did announce she was pregnant would that have different results because it wasn't political