I suppose one could sidestep it by requesting permission to record for "review with the rest of the hiring team." Probably not a good idea, though.

Confronting them on the phone is probably a worse idea, though.

Realistically, though, if you're job hunting, filing lawsuits might not be the best use of time.

lots of places in the US where recording a conversation is legal if one party of the conversation agrees to it (in this case, the party that does the recording)

Bingo.