Page:Lamps Plus, Inc. v. Frank Varela.pdf/49

14 “imposing class procedures based on policy judgments rather than the arbitration agreement itself or some background principle of contract law that would affect its interpretation.” 563 U. S., at 347; see supra, at 10. Substitute “foreclosing” for “imposing” and that is what the Court today has done. It should instead—as the FAA contemplates—have left the parties’ agreement, as construed by state law, alone.