[The Sons of Liberty]

You are correct about choosing the delegates. I'm not sure where the State Legislatures lie, but I suspect that many may lie too far left for me.

Are you sure that the approval process is the same?

[Star Traveler]

You asked — “Are you sure that the approval process is the same?”

It’s Article 5 of the U.S. Constitution...

A starting reference to Article 5 of the Constitution and some discussion...
http://en.wikipedia.org/wiki/Article_Five_of_the_United_States_Constitution

You can go from there and look at other sources.