This is shyte.  The only way a state can do this is via a call for a constitutional convention.

The problem is, once the convention has been called, any given state making a call cannot control the direction the convention goes in.  In other words, regardless of the INTENT of the state(s) making the call, invariably something unexpected (such as a new constitution or a new form of government) will come out of the convention, as the convention is the highest legislative authority of the land, once called, higher indeed than the constitution itself, or the executive, legislative or judicial branches operating under the constitution that is being rewritten in-convention.