The United States Supreme Court recently declined to review a ruling that courts, not arbitrators, determine the availability of classwide arbitration. Previous attempts by putative collective or class representatives to obtain certiorari on the issue were unsuccessful. See, e.g., Opalinski v. Robert Half International Inc., 61 F.3d 326, 330-35 (3d Cir. 2014) (“Opalinski I”) (For K&L Gates’ coverage on the denials of the prior petitions see here and here). The Court’s most recent decision in Opalinski v. Robert Half International Inc. suggests that the Court still does not perceive sufficient disagreement, if any, among the federal courts of appeals on the issue. 677 F. App’x 738, 740 (3d Cir. 2017) (“Opalinski II”). As a result, the trend continues that the availability of classwide arbitration is a gateway issue for the courts.