NewEnglandRepublican, if you're interested in looking at the 2016 Votes by City within California, here's an awesome service that the Secretary of State provides, which is the Supplement to the Statement of the Vote, where you can find results for just about anywhere....
http://elections.cdn.sos.ca.gov/sov/2016-general/ssov/ssov-complete.pdfI haven't checked how far back their electronic package goes for this service, and you should be able to pull data for at least the past few Presidential Elections from the SoS site, but I remember as a Teenager in the late 1980s, finding hard copy data from 1980 and 1984, when I was visiting family and spent some time in the Library at the University of California Santa Cruz, and was so excited I spent hours writing them down in one of my election notebooks that I would always carry around when visiting the libraries...
It's pretty cool being able to pull comparative numbers from decades back without even having to try to amalgamate pieces from various County election sites!!!!