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Election 2010: Senate Elections

Most Recent Releases

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August 13, 2010

Connecticut Senate: Blumenthal (D) 47%, McMahon (R) 40%

The first Rasmussen Reports post-primary telephone survey of Likely Connecticut Voters finds that Democrat Richard Blumenthal has slipped below the 50% mark of support this month against Republican Linda McMahon in the state’s U.S. Senate race.

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August 12, 2010

Missouri Senate: Blunt (R) 50%, Carnahan (D) 43%

The race between Republican Congressman Roy Blunt and Democrat Robin Carnahan in Missouri’s U.S. Senate race is little changed after both candidates easily won their party primaries last week.

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August 12, 2010

Colorado Senate: Buck (R) 46%, Bennet (D) 41%

The first Rasmussen Reports post-primary telephone survey of Likely Voters in Colorado shows a close U.S. Senate race between Republican challenger Ken Buck and incumbent Democratic Senator Michael Bennet.

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August 11, 2010

Wisconsin Senate: Johnson (R) 47%, Feingold (D) 46%

Incumbent Democrat Russ Feingold and his top Republican challenger, Ron Johnson, are essentially tied again this month in Wisconsin’s U.S. Senate race.

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August 11, 2010

Florida Senate: Rubio (R) 38%, Crist (I) 33%, Meek (D) 21%

The race for the U.S. Senate in Florida continues to be all about Governor Charlie Crist and former state House Speaker Marco Rubio, regardless of which Democrat they face.

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August 11, 2010

Illinois Senate: Kirk (R) 40%, Giannoulias (D) 40%

Republican Mark Kirk and Democrat Alexi Giannoulias are tied in Illinois’ race for the U.S. Senate seat once held by President Obama.

 

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August 10, 2010

Iowa Senate: Grassley (R) 55%, Conlin (D) 35%

Longtime Republican Senator Charles Grassley remains comfortably out front in his bid for a sixth term in Iowa’s U.S. Senate race.

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August 10, 2010

Indiana Senate: Coats (R) 50%, Ellsworth (D) 29%

Republican nominee Dan Coats continues to hold a commanding lead in Indiana’s U.S. Senate race.

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August 9, 2010

New Hampshire Senate: Ayotte (R) 51%, Hodes (D) 38%

Former state Attorney General Kelly Ayotte continues to hold a double-digit lead over Democratic Congressman Paul Hodes in the race for U.S. Senate in New Hampshire.

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August 6, 2010

Delaware Senate: Castle (R) 49%, Coons (D) 37%

Delaware's U.S. Senate race is basically unchanged from last month, with Republican Mike Castle again earning less than 50% support. But, still, the longtime GOP congressman holds a 12-point lead over his Democratic opponent.

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August 6, 2010

North Carolina Senate: Burr (R) 49%, Marshall (D) 40%

North Carolina’s race for the U.S. Senate has grown a little closer this month, but Republican incumbent Richard Burr still holds a modest advantage over Democrat Elaine Marshall.

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August 6, 2010

Delaware Senate: Castle (R) 49%, Coons (D) 37%

Delaware's U.S. Senate race is basically unchanged from last month, with Republican Mike Castle again earning less than 50% support. But, still, the longtime GOP congressman holds a 12-point lead over his Democratic opponent.

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August 5, 2010

Kansas Senate: Moran (R) 61%, Johnston (D) 28%

The first Rasmussen Reports post-primary poll in Kansas suggests the state is unlikely to break its 70-plus year streak of electing only Republicans to the U.S. Senate.

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August 5, 2010

California Senate: Boxer (D) 45%, Fiorina (R) 40%

The U.S. Senate race between Democratic incumbent Barbara Boxer and her Republican challenger Carly Fiorina remains close in California.

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August 4, 2010

How Rasmussen Reports Determines Balance of Power Rankings

The Rasmussen Reports Balance of Power rankings are based primarily on the latest Rasmussen Reports polling in a state. Generally speaking, if a race is within five percentage points during the summer, it’s considered a Toss-Up. A larger spread that is still in single digits will be considered Leaning in one direction or the other. A double-digit margin is enough to move the race solidly in the direction of the leader.

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August 4, 2010

Ohio Senate: Portman (R) 44%, Fisher (D) 40%

Ohio’s U.S. Senate race is a little tighter for now but remains generally where it's been for months.

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August 3, 2010

South Carolina Senate: DeMint (R) 62%, Greene (D) 20%

Mystery man Alvin Greene has been the subject of more media coverage this election cycle than any other political candidate, but right now he trails incumbent Republican Jim DeMint by over 40 points in South Carolina’s U.S. Senate contest.

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August 3, 2010

New York Senate: Gillibrand Still Faces Little Threat From GOP Challengers

Once considered one of the most endangered Democratic incumbents in the Senate, Kirsten Gillibrand now continues to hold sizable leads over three potential Republican opponents in her bid for reelection in New York.

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August 2, 2010

Arizona Senate: McCain (R) 53%, Glassman (D) 34%

Incumbent Republican John McCain runs nearly 20 points ahead of his likeliest Democratic challenger, former Tucson Vice Mayor Rodney Glassman, in Arizona’s race for the U.S. Senate.

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July 31, 2010

Oklahoma Senate: Coburn (R) 65%, Rogers (D) 31%

Republican incumbent Tom Coburn continues to hold a commanding lead over Jim Rogers, the winner of Tuesday's Democratic Primary, in Oklahoma’s U.S. Senate race.