The following individuals have declared their candidacy as Republicans and are still running as of this posting. Keep in mind that the first election numbers that mean anything aren't until February 6, the day of the Iowa caucuses. I suspect that in the time between now and then, the crowd will have been thinned significantly with a clear pack of viable candidates.

Michele Bachmann (Declared June 27, 2011, U.S. Representative from Minnesota's Sixth Congressional District)

Herman Cain (Declared May 21, 2011, Business executive and radio-host from Georgia)

Newt Gingrich (Declared May 11, 2011, Former Speaker of the U.S. House of Representatives from Georgia)

Jon Huntsman, Jr. (Declared June 21, 2011, Former Governor of Utah and US Ambassador to China)

Gary Johnson (Declared April 21, 2011, Former Governor of New Mexico)

Fred Karger (Declared March 23, 2011, Political consultant and gay rights activist from California)

Andy Martin (Declared December 29, 2010, Perennial candidate from Illinois)

Thaddeus McCotter (Declared July 2, 2011, U.S. Representative from Michigan's 11th congressional district)

Jimmy McMillan (Declared December 23, 2010, Perennial candidate from New York)

Ron Paul (Declared May 13, 2011, U.S. Representative from Texas's 14th congressional district)

Rick Perry (Declared August 13, 2011, Governor of Texas)

Buddy Roemer (Declared July 21, 2011, Former Governor of Louisiana)

Mitt Romney (Declared June 2, 2011, Former Governor of Massachusetts)

Rick Santorum (Declared June 6, 2011, Former U.S. Senator for Pennsylvania

Below are the latest polling figures from RCP. You'll note that Former Governor of Alaska Sarah Palin and Former Governor Giuliani are included in some of these figures as they have yet to declare if they are or are not running this year.

Gallup - 8/17 - 8/21:
Perry 25%
Romney 14%
Palin 11%
Paul 11%
Bachmann 7%
Giuliani 9%
Gingrich 3%
Cain 4%
Santorum 3%
Huntsman 1%

Rasmussen Reports - 8/15 - 8/15:
Perry 29%
Romney 18%
Paul 9%
Bachmann 13%
Gingrich 5%
Cain 6%
Santorum 1%
Huntsman 1%

PPP - 8/18 - 8/21:
Perry 27%
Romney 17%
Palin 13%
Paul 6%
Bachmann 10%
Gingrich 7%
Cain 7%
Santorum 3%
Huntsman 2%