This winger, for instance, wants the US to expell the Blue States:

Yet, there are 38 states today that may be inclined to adopt, let us call it, a “Declaration of Expulsion,” that is, a specific constitutional amendment to kick out the systemically troublesome states and those trending rapidly toward anti-American, if not outright subversive, behavior. The 12 states that must go: California, Illinois, New York, New Jersey, Massachusetts, Vermont, New Hampshire, Maine, Rhode Island, Connecticut, Maryland, and Delaware. Only the remaining 38 states would retain the name, “United States of America.” The 12 expelled mobs could call themselves the “Dirty Dozen,” or individually keep their identity and go their separate ways, probably straight to Hell