Several 2012 presidential hopefuls will address House Republican lawmakers at their annual retreat this weekend.

President Obama wasn't invited.

Former House Speaker Newt Gingrich (R-Ga.) and Mississippi Gov. Haley Barbour (R) are among a handful of Republicans set to address House GOP lawmakers at their annual retreat this weekend.

Virginia Gov. Bob McDonnell and Texas Gov. Rick Perry also are included on the list of speakers scheduled for the three-day retreat in Baltimore, Md., set to begin Jan. 13.

Gingrich, Barbour and Perry have all been mentioned as a possible 2012 presidential candidates.

Last year, when Democrats were in control of the House, Obama addressed the retreat but, according to a source close to the House GOP Conference, he wasn't invited to do so this year. At last year's retreat, Obama's remarks and subsequent back-and-forth with GOP lawmakers was televised, with most observers agreeing the president won the debate.

This year's retreat "will focus on the House Republican pledge to the American people for more jobs and less government spending," according to a release issued by the conference.

Other participants listed for this year include former U.S. Secretary of Health and Human Services Michael Leavitt, columnist George Will, and radio host Dennis Prager.