Most of the polls I saw seem to be fairly coarse and (for those that break out people by education) only break out people by whether they completed college, or postgrad, or none.
Are there any good polls available that break out the party preference (any which way possible, either presidential voting or otherwise) by college major/concentration?
I'm mostly curious as to what the differences are between STEM majors, social sciences, or law degrees and medical degrees.
This is mostly about USA, though I wouldn't reject a good answer pertaining to other countries.
I would prefer high quality poll(s) - anything Nate Silver would put in a nice corner instead of naughty corner is how I judge.
I'm mostly looking for coarse political alignments (D or R) but would definitely love to see polls delving into finer details on policy positions on major stuff.