Why does Congress suffer from a collective action problem in the face of presidential power?

Question

Quizplus · Accepted Answer

Collective action problems arise when a group of individuals faces a common challenge, but each member has an incentive to shirk their responsibility in the hope that others will act instead. In the case of Congress, individual members are more concerned with the substantive impact of presidential action on their constituents than with the general implications of presidential powers. As a result, they often fail to coordinate and act as a unified body to constrain presidential power.

Why Does Congress Suffer from a Collective Action Problem in the Face