The Cook Political Report - Charts - 2010 Senate Race Ratings

The Insider's Choice for Election Analysis

2010 SENATE RACE RATINGS

August 20, 2009

Senate Lineup: 58 Democrats, 40 Republicans, 2 Independent(s)
Senators with names in parentheses are retiring.

The chart below provides a spectrum that analyzes the vulnerability (the chances of the seat switching parties) of the Senate races up this cycle.

Solid: These races are not considered competitive and are not likely to become closely contested.
Likely: These seats are not considered competitive at this point but have the potential to become engaged.
Lean: These are considered competitive races but one party has an advantage.
Toss Up: These are the most competitive races; either party has a good chance of winning.

DEMOCRATS | 18 HELD SEATS

SOLID D (12)

Lincoln (AR)

DE (Kaufman)

Inouye (HI)

Bayh (IN)

Mikulski (MD)

Schumer (NY-A)

Gillibrand (NY-B)

Dorgan (ND)

Wyden (OR)

Leahy (VT)

Murray (WA)

Feingold (WI)

LIKELY D (1)

Reid (NV)

LEAN D (3)

Boxer (CA)

Bennet (CO)

Specter (PA)

TOSS UP (2)

Dodd (CT)

IL (Burris)

LEAN R (0)

LIKELY R (0)

SOLID R (0)

REPUBLICANS | 19 HELD SEATS

SOLID D (0)

LIKELY D (0)

LEAN D (0)

TOSS UP (5)

KY (Bunning)

MO (Bond)

NH (Gregg)

OH (Voinovich)

TX (Hutchison)

LEAN R (1)

Vitter (LA)

LIKELY R (2)

FL (Martinez)

Burr (NC)

SOLID R (11)

Shelby (AL)

Murkowski (AK)

McCain (AZ)

Isakson (GA)

Crapo (ID)

Grassley (IA)

KS (Brownback)

Coburn (OK)

DeMint (SC)

Thune (SD)

Bennett (UT)

* = potential retirement