this is the special clause in the canadian constitution:
https://en.wikipedia.org/wiki/Section_33_of_the_Canadian_Charter_of_Rights_and_Freedoms

and this is the section that judges can use to suspend the constitution when legislation is challenged as unconstitutional:
https://en.wikipedia.org/wiki/Section_1_of_the_Canadian_Charter_of_Rights_and_Freedoms

something similar must exist in the united states, to allow the government to pass unconstitutional legislation for national security reasons, so long as it is set to run out after a certain amount of time.

but, why do you think he did this? do you think he's really going to figure this out in 90 days? do you think he doesn't know where they're coming from in the first place?