; and (ii) to have been acting within the scope of his or her employment under section 1346(b) and chapter 171 of title 28, United States Code; (B) section 1346(b) of title 28, United States Code, shall provide the exclusive remedy for the plaintiff; and (C) the United States shall be substituted as defendant in the proceeding. (c) Rule of construction Nothing in this section may be construed to provide immunity to any person who knowingly violates the civil or constitutional rights of an individual. 3. Sanctuary jurisdiction defined (a) In general Except as provided under subsection (b), for purposes of this Act, the term sanctuary jurisdiction means any State or political subdivision of a State that has in effect a statute, ordinance, policy, or practice that prohibits or restricts any government entity or official from— (1) sending, receiving, maintaining, or exchanging with any Federal, State, or local government entity information regarding the citizenship or immigration status (lawful or unlawful) of any individual