Congress has a long history of deference to the Executive with regard to foreign policy and the intelligence community. During the Cold War in particular, Congress often wished to be kept at arm’s reach from covert operations conducted by Democratic and Republican presidential administrations. Yet in the 1980s, Members of Congress began to assert themselves over the Reagan administration’s covert operation to provide aid and weapons to the contras in Nicaragua. We articulate a theory showing how backbenchers moved intelligence committee members away from deference and into a more polarized, adversarial posture. We then investigate the mechanisms of this theory with a novel dataset of speeches of Members of Congress, 1981-1983, on the topic of Nicaragua. We find that intelligence committee members’ rhetoric began to shift towards the rhetoric of backbenchers as more revelations about the covert operation are made public. These findings suggest that the modern confrontational attitude of Congress toward the intelligence agencies has its roots in the 1980s, rather than the 1990s, and demonstrate a new mechanism by which Congress oversees the executive.
Fahey et al. (2026) studied this question.