South Carolina Sen. Lindsey Graham said the decision to use the so-called “nuclear option” to confirm presidential nominees with a bare majority of Senate votes likely means President Obama won’t get to choose who replaces Justice Antonin Scalia.

Scalia died Saturday at the age of 79. Speculation about who would replace him, and how it would happen, began almost immediately. Senate Majority Leader Mitch McConnell, R-Ky., quickly said the Senate would wait to confirm any appointee until after the presidential election.