| − | The number of Senators that must be present for the Senate to do business. The Constitution requires a majority of Senators (51) for a quorum. Often, fewer Senators are actually present on the floor, but the Senate presumed that a Quorum is present unless the contrary is shown by a roll call vote or quorum call. | + | The number of [[Senator|Senators]] that must be present for the [[United States Senate|Senate]] to do business. The [[United_States_Constitution|Constitution]] requires a majority of Senators (51) for a quorum. Often, fewer Senators are actually present on the [[floor]], but the Senate presumed that a Quorum is present unless the contrary is shown by a roll call vote or [[quorum call]].<ref>[http://www.senate.gov/reference/glossary_term/quorum.htm] US Senate Reference</ref> |