1788?
That's a formulation by my good friend Brother Joe.
I think I know what he was trying to say . . . somethin’ about domestic insurrections amongst us means Indians on the warpath; 24 beats 11; and big government has failed, give us more big government.
Ask him, if you have time for a son-of-Raul length speech.
Ratification of the new Constitution and therefore a form of "secession" from the old Articles of Confederation -- the very definition of "mutual consent" and "at pleasure".
Our Lost Causers like to insist the 1776 Declaration was "secession" form Britain so I point out that was from necessity, not at pleasure.
1788 was "at pleasure" but also by mutual consent.