A more complicated, but more likely, way to ban the filibuster would be to create a new Senate precedent. The chamber’s precedents exist alongside its formal rules to provide additional insight into how and when its rules have been applied in particular ways. Importantly, this approach to curtailing the filibuster—colloquially known as the “nuclear option” and more formally as “reform by ruling”—can, in certain circumstances, be employed with support from only a simple majority of senators.
The nuclear option leverages the fact that a new precedent can be created by a senator raising a point of order, or claiming that a Senate rule is being violated. If the presiding officer (typically a member of the Senate) agrees, that ruling establishes a new precedent. If the presiding officer disagrees, another senator can appeal the ruling of the chair. If a majority of the Senate votes to reverse the decision of the chair, then the opposite of the chair’s ruling becomes the new precedent.
In both
2013 and
2017, the Senate used this approach to reduce the number of votes needed to end debate on nominations. The
majority leader used two non-debatable motions to bring up the relevant nominations, and then raised a point of order that the vote on cloture is by majority vote. The presiding officer ruled against the point of order, but his ruling was overturned on appeal—which, again, required only a majority in support. In sum, by following the right steps in a particular parliamentary circumstance, a simple majority of senators can establish a new interpretation of a Senate rule.