The 2010 Delaware Senate election was held on November 2, 2010, to elect 11 of the 21 members to Delaware's Senate. The election coincided with the elections for other offices, including the U.S. Senate, U.S. House of Representatives, and state house. The primary election was held on September 13, 2010.

Results summary DistrictIncumbentPartyElected SenatorParty 1 Harris McDowell IIIDem Harris McDowell IIIDem 5 Catherine CloutierRep Catherine CloutierRep 7 Patti BlevinsDem Patti BlevinsDem 8 David SokolaDem David SokolaDem 9 Karen PetersonDem Karen PetersonDem 12 Dorinda ConnorRep Dorinda ConnorRep 13 David McBrideDem David McBrideDem 14 Bruce EnnisDem Bruce EnnisDem 15 Nancy CookDem David LawsonRep 19 Joseph BoothRep Joseph BoothRep 20 George BuntingDem George BuntingDem

Party Candi-dates Votes Seats No. % No. +/– % Democratic 9 84,446 60.09% 14 1 66.67% Republican 8 55,933 39.80% 7 1 33.33% Working Families 1 165 0.12% 0 0.00%Total 17 140,544 100% 21 100%

Predictions SourceRankingAs of Governing | November 1, 2010

Detailed results Results of the 2010 Delaware Senate election by district:

District 1 Incumbent Democrat Harris McDowell III has represented the 1st district since 1977.

District 5 Incumbent Republican Catherine Cloutier has represented the 5th district since 2001.

District 7 Incumbent Democrat Patti Blevins has represented the 7th district since 1991.

District 8 Incumbent Democrat David Sokola has represented the 8th district since 1991.

District 9 Incumbent Democrat Karen Peterson has represented the 9th district since 2003.

District 12 Incumbent Republican Dorinda Connor has represented the 12th district since 1997.

District 13 Incumbent Democrat Majority Leader David McBride has represented the 13th district since 1979.

District 14 Incumbent Democrat Bruce Ennis has represented the 14th district since 2007.

District 15 Incumbent Democrat Nancy Cook has represented the 15th district since 1975. Cook lost re-election to Republican David Lawson.

District 19 Incumbent Republican Joseph Booth has represented the 19th district since winning a special election in 2009 to replace Democrat Thurman Adams Jr., who had died in office. Republican primary

General election

District 20 Incumbent Democrat George Bunting has represented the 20th district since 1997. Democratic primary

General election

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