Simple but valid question: "so what really defines a school as liberal vs conservative?"

" It was a Sunday so nobody was around but many had newspaper clippings, signs, jokes, all deriding Trump and conservatives and promoting a very liberal slant."

I wouldn’t conflate dislike of the current occupant of the WH with disdain for conservative viewpoints. I know many lifelong Republicans that are very anti the current administration and, yes, even share memes and such about it.