From last year but everpresent. https://www.washingtonpost.com/news/volokh-conspiracy/wp/2017/06/19/supreme-court-unanimously-reaffirms-there-is-no-hate-speech-exception-to-the-first-amendment
That's the upshot of the "Slants" case (which will also protect the Redskins trademark) -- and it applies to exclusion of speakers from universities, denial of tax exemptions to nonprofits, and much more.
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