Research on American political institutions correctly emphasizes the ascendency of presidential power over the last century. Nevertheless, Congress possesses tools to influence how the executive branch shapes public policy. I examine how the use of limitation riders in appropriations laws allows Congress to affect the substance of bureaucratic decisions when Congress otherwise would not have much traction with the bureaucracy: under divided government. In examining the history of limitation riders that forbade the issuance of bureaucratic regulations from 1989 to 2009, I find support for this perspective. The findings suggest that, although Congress may be at a disadvantage in shaping law and policy relative to the president in many cases, its constitutionally protected spending authority continues to promote its ability to influence the executive branch.