Relying on an “affidavit” from a store manager that was notarized four days after it was signed, Wal-Mart (a citizen of Delaware and Arkansas) asked U.S. District Judge Virginia M. Kendall to deny Betsy and Jack Snyder’s motion to remand their Cook County slip-and-fall case because the plaintiffs (Illinois citizens) allegedly attempted to defeat diversity jurisdiction by fraudulently joining an Illinois …