In Guidry v. Sheet Metal Workers National Pension Fund, 493 U.S. 365, 107 L. Ed. 2d 782, 110 S. Ct. 680 (1990), the chief executive officer of a union had embezzled union funds, and the union obtained a sizable judgment against him. The union official was eligible to receive benefits under his pension plans, and the union sought to impose a constructive trust on those benefits. The Supreme Court held that ERISA's anti-alienation provision foreclosed that remedy because pension plan rather than welfare plan benefits were at issue. Id. at 376-77.