[cnn-photo-caption image= http://i2.cdn.turner.com/cnn/2009/images/12/07/art.joead1207.yt.jpg caption="Sen. Joe Lieberman is coming under fire for his opposition to a public option as part of health care reform."]
Washington (CNN) - Sen. Joe Lieberman is under fire from a liberal political organization, which is airing a new television commercial this week critical of the Independent's opposition to a public option as part of health care reform.
The Progressive Change Campaign Committee is airing a 30-second ad on stations in Connecticut and the nation's capital in an effort to "pressure" Lieberman to vote for the public option in the Senate health care bill. Lieberman has repeatedly stated he does not support the idea.
The initial ad buy is for $40,000 to air the commercial on broadcast channels in Connecticut and cable outlets in Washington, DC. A fundraising email will be sent this morning asking people to donate money to help keep it on the air. Adam Green, co-founder of the Progressive Change Campaign Committee, said previous fundraising solicitations to pay for commercials aimed at Sen. Max Baucus, D-Montana, and Sen. Ben Nelson, D-Nebraska, "easily passed $100,000."
Follow Mark Preston: on Twitter: @prestoncnn