Suppl Jxn 1367 Lack of Subj. Matter Jxn 1. Parties must still obey the judge even when lacks subj. 2 collateral attack Collateral Attack 1. Clear lack of subj matter jxn 2.
Policy is strong against ct.
If contested axn, NO justifiable int. Diversity Jxn 1332 1. Jxn 1367 1. If 1 true claim, can sweep in other claims by nucleus of common fact test 2. No impleading that would destroy diversity 5.