to upset a trial judge's approval of a consent decree.” Cannons, 899 F.2d at 84. The burden is equally heavy here. 7 . Still another reason to accord a significant degree of deference to the claims of the Regional Director is the strength of the congressional mandate. See Union de Tronquistas, 586 F.2d at 876. Under the law, once the Regional Director has reasonable cause to believe that a Union’s activity falls within the proscription of section 10(7), she "shall ... petition ... for appropriate injunctive relief...." 29 U.S.C. § 160(1) (emphasis supplied). This is in stark contrast to section 10(j), which grants discretion to pursue injunctions against employers under specified circumstances. See Miller v. California Pac. Medical Ctr., 19 F.3d 449, 456 (9th Cir.1994) (en banc) (<HOLDING>); see generally Schatzki, supra, at 568-71
recognizing rule recognizing the dichotomy recognizing change recognizing burden recognizing presumption