Holds are an informal device unique to the upper body. They permit a single Senator or any number of Senators to stop—sometimes temporarily, sometimes permanently—floor consideration of measures or matters that are available to be scheduled by the Senate.
A hold, in brief, is a request by a Senator to his or her party leader to delay floor action on a measure or matter. It is up to the majority leader to decide whether, or for how long, he will honor a colleague’s hold. Scheduling the business of the Senate is the fundamental prerogative of the majority leader, and it is done in consultation with the minority leader.
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Potency of Holds
Holds are a potent blocking device because they are linked to the Senate’s tradition of extended debate and unanimous consent agreements. Party leaders understand that to ignore holds could precipitate objections to unanimous consent requests and filibusters.
Unlike filibusters, which may be partly educational in their purpose and which are televised nationally over C-SPAN, holds require no public utterance. Little surprise that holds are sometimes referred to as a “silent filibuster.”
Articles 7 and 9 at the following site have a lot of information.
http://www.senate.gov/general/search/search_cfm.cfm?q=silent+filibuster&site=default_collection&num=10&filter=0&x=11&y=8I want a real filibuster, and I want to see the Rethugs + Joe stay there 24/7 reading the phone book or whatever.