We have previously posted on the welding-rod case Tamraz v. Lincoln Electric Company, and the new, higher standard for expert causation testimony under Daubert.  We reported that on the plaintiff’s cert petition here.  The Supreme Court has now denied the plaintiff’s petition for certiorari.  The case, which had resulted in a $20.5 million verdict, will go back for retrial.  The opinion, however, will continue to hold expert witnesses in the Sixth Circuit to a higher standard for causation in toxic tort cases.