Senatorial courtesy

Unofficial rule in the U.S. Senate

Senatorial courtesy is a long-standing, unwritten, unofficial, and nonbinding constitutional convention in the U.S. describing the tendency of U.S. senators to support a Senate colleague opposing the appointment to federal office of a nominee from that senator's state. The practice is motivated by a general sense of collegiality among senators and the assumption that a Senate colleague will have the best first-hand knowledge of the personal character and qualifications of a nominee from the senator's own state. It is also viewed as an "important source of political patronage" for U.S. senators.

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