[TBP]

Three justices — Sotomayor, Kagan, and Jackson — and maybe the Chief Justice — will vote to rule any amendment the Article V Convention adopts unconstitutional.

[Who is John Galt?]

Three justices — Sotomayor, Kagan, and Jackson — and maybe the Chief Justice — will vote to rule any amendment the Article V Convention adopts unconstitutional.

An Article V convention would simply propose amendments, NOT "adopt" them. Any proposed amendment would need to be ratified by 3/4 of the States before it became part of the Constitution - at which point, it would be just as "constitutional" as any other part.

;>)