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U.S. Senate |
 | | Vice presidents cannot vote in the Senate, except to break a tie, nor may they formally address the Senate, except with the senators' permission. |
 | | Initially vice presidents appointed senators to standing committees, regulated access to the galleries and supervised the keeping of the Senate Journal, but these duties were later removed. |
 | | Junior senators fill in as presiding officer when neither the vice president nor president pro tempore is on the Senate Floor. |
| www.senate.gov (538 words) |
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