Tis the season for endless (yet important) reports on presidential polling.

As participants in Iowa's partisan caucuses gear up for the January 3 date of the event that will begin the process of selecting delegates for party presidential nominations, a new poll shows US Senator Barack Obama of neighboring Illinois moving to a 7-point lead among likely Democratic caucus-goers.

The survey, done by Strategic Vision, is the first public poll showing a lead for Obama.

Among Republican caucus-goers, former Arkansas Governor Mike Huckabee has a statistically insignificant three-point edge over former Massachusetts Governor Mitt Romney.

Here are the GOP results:

Huckabee:  27%

Romney:  24%

Former New York City Mayor Rudy Giuliani:  13%

Former US Senator Fred Dalton Thompson of Tennessee:  11%

US Senator John McCain of Arizona:  6%

Congressman Ron Paul of Texas:  5%

Iowa Dems:

Obama:  32%

US Senator Hillary Rodham Clinton:  25%

Former US Senator John Edwards of North Carolina:  25%

Results are based on telephone interviews with 600 likely Republican caucus goers and 600 likely Democratic caucus goers, aged 18+, and conducted November 30 - December 2, 2007. The margin of sampling error is ±4.5 percentage points.