Rep. Adam Kinzinger said he has introduced a resolution to authorize US military force if Russia uses chemical, biological or nuclear weapons in Ukraine. “I don’t think we need to be using force in Ukraine right now. I just introduced an AUMF, an authorization for the use of military force, giving the president basically congressional leverage for permission to use it if [weapons of mass destruction] — nuclear, biological or chemical — are used in Ukraine” said Kinzinger. He stated this measure is a deterrent to Vladimir Putin.