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July 21, 2009 Dem: 57 Indy: 2 Total:59 Vacant: 1 Senator Byrd returned to Senate; Senator Kennedy still ill Aug 25, 2009 Dem: 57 Indy: 2 Total: 59 Vacant: 1 Senator Kennedy died Sept 24, 2009 Dem:57 Indy: 2 Total: 60 Vacant: 0 Paul G. Kirk appointed to fill Kennedy seat Feb 4, 2010 Dem: 57 Indy: 2 Total: 59 Vacant: 1 Rep Senator Brown elected to Kennedy seat The only time the Dems had enough votes to prevent filibuster was from Sept 24 to Feb 4. Of which, Congress was only in session 67 days. Dems did not have control of congress for the full 2 years.
Jan 20, 2009 : Dem: 55 Indy: 2 Total: 57 Vacant: 2 Senator Kennedy ill/ Results of Minnesota seat contested. Apr 28, 2009 Dem: 56 Indy: 2 Total: 58 Vacant: 2 Arlen Spector switched parties; Senator Kennedy ill; Minnesota seat contested. May 15, 2009 Dem: 56 Indy: 2 Total: 58 Vacant: 2 Senator Kennedy ill; Minnesota seat contested. June, 2009 Dem: 57 Indy: 2 Total: 59 Vacant: 2 Senator Kennedy cast healthcare vote; Senator Byrd hospitalized; Minnesota seat still contested. July 7, 2009 Dem: 56 Indy: 2 Total: 58 Vacant: 2 Senator Franken sworn-in; Senator Kennedy and Senator Byrd ill.
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