I was surprised, since SD county has been red for as long as I’ve lived here. I was also surprised to see it had been blue as recently as 1984.
I would betcha that north county is still red.
Somebody commented on the article on the UT website and noted that the blue line isn’t trending up much long term, except in 2008 probably due to Obama.
The bigger story is how the red line has been steadily marching downward at a pretty good clip for years. That must mean other parties, and probably mostly Independents, have been making the biggest gains.