There is a substantial divide between the STEM professors and liberal farts profs. Those of us in the hard sciences, medicine, engineering are about 50% on the conservative side. I see the TEA party stickers on their bumpers in just the one parking lot where I work.
I realize that. I graduated from a STEM institute back in 1980. Many, many conservative profs there. BUT, there were also a lot of those liberal farts profs in the liberal arts Freshman and Sophomore parts as well. I had a hippy sandal wearing goateed Columbia prof who hated my guts because I was ex military.
I agree. I went through engineering, and I had no problems with any of my ChemE or EE professors. They were professional, and appeared apolitical in class. My guess is that many were conservative/Republican.