Kamala Harris (US Vice President) making some statement on the Russia and Ukraine problem said US and her aligns will impose unprecedented economic sanction on Russia if they continue to evade or attack Ukraine. So I'm wondering what kind of unprecedented economic sanction can be given to Russia if they continue to evade Ukraine.
They will kick them out of SWIFT and stop there probably. The thing is the US can't do more. Biden already said that they are not going to send troops to Ukraine to fight Russia if Russia invades Ukraine.
You can't do much against a nuclear force as long as they don't threaten you directly. Getting kicked out of SWIFT would benefit Russia more in the end ironically because the USD will lose another customer.