When Congress passes laws, they go through a period of judicial review where the Supreme Court can declare the law as unconstitutional and have it not pass. The Supreme Court can also declared executive orders unconstitutional as well.
It means to withstand a legal challenge on Constitutional grounds. An unconstitutional law is one that will not "pass Constitutional muster," and would be overturned by the SCOTUS if challenged.
The Supreme Court of the United States (SCOTUS)
Marianus Scotus was born in 1028.
David Scotus died in 1139.
Duns Scotus was born in 1266.
Scotus Academy's motto is 'Therefore, he did it.''.
Scotus Academy was created in 1953.
Aaron Scotus died in 1052.
Well, there are two types of cases in which SCOTUS has original , or first and final, jurisdiction: if a foreign diplomat is involved or a state is named in a case that doesn't involve a private citizen; otherwise, SCOTUS as appellate or appeal-level jurisdiction in any and all cases unless Congress preemptively limits SCOTUS' authority.
Legislative - Congress can override a Presidential veto, or refuse to declare war, or block funding for Federal programs; the Senate can refuse to confirm Presidential cabinet nominees or Federal judgesJudicial - the Supreme Court can find an executive order unconstitutional
Blessed Marianus Scotus died in 1088.