Putting the Brakes on Greased Wheels: The Politics of Weak Obstruction in the United States Senate

Obstruction is a fundamental aspect of legislative politics. In the United States Congress, senators exercise procedural prerogatives to defeat a bill with which they disagree on policy grounds. We argue that senators also utilize obstructive tactics in order to do more than block legislation with which they disagree. We claim that legislators engage in “weak” (as opposed to strong) obstruction in an effort to accrue political benefits to themselves and their constituents, but only when senators support the underlying policy the bill addresses. We test our theory by measuring the frequency with which senators engage in weak obstruction on bills that passed the Senate between 1973 and 2013. We find that senators are significantly more likely to engage in weakly obstructive behavior when they stand to benefit politically.