Is that even legal under US law? Apparently it is in some states. Federal law does not, apparently, prohibit political discrimination. But some states do - California, New York, DC, Colorado, and North Dakota.[1]
This should be reported to the FBI's Foreign Influence Task Force.[2] Anyone involved in such suppression activities may be considered an "unregistered foreign agent".[3] Anyone or any organization attempting to influence US policy on behalf of a foreign government is supposed to register. Here's the database.[4]
[1] https://www.legalmatch.com/law-library/article/political-aff...
[2] https://www.fbi.gov/investigate/counterintelligence/foreign-...
[3] https://en.wikipedia.org/wiki/Foreign_Agents_Registration_Ac...
[4] https://search.justice.gov/search?affiliate=justice_fara
I see this as a reason to strengthen the Foreign Agents Registration Act.
Politico has some coverage of the current Israel-related lobbying push.[2] There are a lot of players. "An unsanctioned coterie of pro-Israel quasi-lobbyists has descended on D.C." Some have formally registered as agents of Israel. Some haven't.
The big issue here is when activities go beyond lobbying. Anyone can lobby Congress; that's a constitutional right in the US. Getting people fired on behalf of a foreign power, though, is a legally questionable activity.
[1] https://thediplomat.com/2023/11/the-rise-and-fall-of-confuci...
[2] https://www.politico.com/news/2023/10/22/pro-israel-lobbying...