Blue-Slipped definition
Blue-Slipped. Nominations. The tradition of “senatorial courtesy” has a long history. Under this practice, the Senate often declined to confirm a presidential nominee for an office in the state of a Senator of the President’s party unless that Senator approved. The practice is a purely customary one and not always followed by the Senate. The term “blue slip” derives from the blue buckslip that the Senate Judiciary Committee uses to solicit Senators’ comments on the suitability of nominees in their states. Customarily, Senators have been able to block such nominees without their objections being made publicly known.