terrible idea, it would either be a nonsense law or passed in a way that would make it completely toothless. /pol/ says dual citizen but in almost all cases the lawmaker in question has only one passport, an american one. this talking point glosses over that the "dual citizenship" is just that any jew on the planet has an open offer to move to israel and become a citizen at any time. yes they could go there, but being offered citizenship is not the same thing as accepting citizenship. they're not citizens of israel yet. so if you wrote the law to say that lawmakers can't have offers on the table to be citizens elsewhere, any nation on earth could unseat an american congress creature simply by extending an offer for citizenship in their country. haiti could unseat thomas massie by offering him a free citizenship with no questions asked. if the law was written to target potential citizenship, an offer from haiti would indeed make him a "dual citizen" of america and haiti, and away he goes. you could write it such that only accepted offers of dual citizenship count, that would be a pretty commonsense rule, but then it would do absolutely nothing to any jew currently in congress. they don't take that offer until they're ready to move, there's no need to, it's always waiting for them. so either you can't use it on them or it's pointless to because they already decided to run to israel. a gesture at best. the second version is probably a good rule to have in place but it won't mean much in practicality.
United States