defendant may proceed under this rule against a nonparty who is or may be

liable to the third-party defendant for all or part of any claim against it. (b) When a Plaintiff may Bring in a Third Party. When a claim is asserted against a plaintiff, the plaintiff may bring in a third party if this rule would allow a defendant to do so. History: Adopted September 21, 2021, effective De- cember 1, 2021.