[AndyJackson]

two thirds of the State legislatures (that is, 34 of the 50) may call a convention to propose amendments,

So all you need is one branch of the legislature in 17 states to say no and this option is foreclosed. Does anyone see Newsome's fantasy as a likely outcome?

[Publius]

Even better, all you need is one branch of the legislature in 13 states to kill ratification of any amendment a convention produces.