Finally, the exercise of personal jurisdiction under the Illinois long-arm statute must also be consistent with the Illinois Constitution's guarantee of due process. While a court must conduct an independent analysis of due process under Illinois law, it may look to federal due process law for guidance in construing the Illinois due pro- cess guarantee. Because defendants give us no reason to otherwise construe the facts in light of the Illinois Con- stitution, we likewise find that the district court's exercise of personal jurisdiction over defendants would not violate requirements of Illinois due process. Chapter 735, Act 5, sec. Since we conclude that defendants are subject to personal jurisdiction because they were doing business in Illinois, we need not specifi- cally address this issue.
Jurisdiction is founded on diversity.
Illinois law con- trols all substantive issues. Skurzewski testified that her territory initially covered Illinois, Wisconsin, Minnesota, Iowa and Missouri, and at some point Missouri was removed, and Indiana, Michigan and Ohio were added. We do not know how long her current territory has been in effect. Skurzewski's earnings statements that are in the record indicate that she was paid at an hourly rate for forty hours a week.