[Cyclopean Squid]

So who is the arbiter of legal orders? Can each branch make its own determination of what is constitutionality? Or does that right belong exlcusively to the Judiciary?

[AntiGovernment]

So who is the arbiter of legal orders? Can each branch make its own determination of what is constitutionality? Or does that right belong exlcusively to the Judiciary?

It belongs exclusively to the only branch that is independent from popular vote, the judiciary. That's a good thing, otherwise, a lot of unpopular rights would be trampled upon. However, a legislature can correct a problem by amending the constitution.

I know this might sound unappealing because it has some side-effects. But I believe the alternative is much, much worse.