A “live pair” is an informal voluntary agreement between lawmakers which is not specifically recognized by House or Senate rules.
Live pairs are agreements which Members employ to nullify the effect of absences on the outcome of recorded votes. If a Member expects to be absent for a vote, he or he may “pair off” with another Member who will be present and who would vote on the other side of the question, but who agrees not to vote.
The Member in attendance states that he has a live pair, announces how he and the paired Member would have voted, and then votes “present.” In this way, the other Member can be absent without affecting the outcome of the vote. Because pairs are informal and unofficial arrangements, they are not counted in vote totals; however paired Members’ positions do appear in the Congressional Record.