At issue in this case is the disposition of more than 14,000 actions filed by some 30,000 to 35,000 plaintiffs pending before the United States District Court for the Eastern District of Pennsylvania as part of the Multidistrict Diet Drug Product Liability Litigation, MDL-1203. Petitioners are 450 plaintiffs who originally filed their suits in Texas state courts. Defendant Wyeth removed the suits to the Texas federal district courts on the basis of diversity jurisdiction, even though petitioners had also named non-diverse parties as defendants. According to Wyeth, removal was proper because the additional defendants were named solely as a means to defeat federal jurisdiction. After the actions were transferred to the docket of MDL-1203, petitioners moved for a remand to state court. The District Court held that the non-diverse defendants were "fraudulently joined" because it determined that the claims against them are clearly time-barred under the governing Texas statute of limitations. It therefore dismissed all defendants except Wyeth, held that it has diversity jurisdiction, and denied the motions to remand. Claiming that the District Court committed a clear error of law, petitioners seek a writ of mandamus and ask that we direct the District Court to remand their cases to state court.