Key Senate Races

There are 33 Senate races this year, with Democrats defending 18 seats and Republicans defending 15. Republicans currently hold 55 seats and Democrats hold 44. One seat is held by an independent who caucuses with the Democrats. Democrats need a net gain of six seats to take control of the Senate with a bare voting majority of 51. A 50-50 tie would preserve the Republican majority in the chamber because Vice President Cheney would cast tie-breaking votes.

Graphic: Pre-Election Party Standings

» Key Results: Governor Races | U.S. House Races | U.S. Senate Races

Results: Key Senate Races

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