Certainly one such doctrine
Defined in 1 dictionary — Case Law
Definitions from Case Law
From 514 U.S. 211 - Plaut v. Spendthrift Farm, Inc. · 1995Most cited · 1,661 citing opinions
the "judicial Power" to disregard an unconstitutional statute, see "Marbury," 1 Cranch, at 177; yet none would suggest that a litigant may never waive the defense that a statute is unconstitutional.