[hnfong]

Generally, I do agree that in most if not all places, if you get government funding, you can't go against government policy.

However, in this case, it's quite hard to argue that Terrence Tao had anything to do with antisemitism or anything against Trump's policies. Actually I don't think Terrence Tao did anything that Trump cared about. This isn't really a free speech issue, it's more like some fundamental instability in the US, and maybe the US government is running out on money and trying to cut down on research expenditure using excuses.