The American Action Network (AAN), a conservative group, announced an ad campaign Tuesday valued at $2 million to promote Republican legislators who supported the American Health Care Act (AHCA).

The bill passed through the House by a narrow margin earlier this month, and is now up for review by the Senate.

The announcement came in anticipation of the Congressional Budget Office (CBO) score for the legislation, which is due to come out on Wednesday.

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The group's latest ad depicts a California woman, Elizabeth Jacinto, who says she lost access to her doctor and health insurance due to the Affordable Care Act, which the AHCA seeks to replace. The ad is part of the non-profit's $5 million campaign launched "to defend and thank conservative members of Congress who continue to work to repeal and replace the Affordable Care Act." It is set to air in 21 congressional districts across the United States, including Speaker of the House Paul Ryan's district.

"Conservatives in Congress made a promise to the American people that better health care was on the way, and they kept that promise by passing the AHCA," said AAN Executive Director Corry Bliss. "That's why AAN will continue its aggressive efforts to promote the AHCA and thank members of Congress who are fighting to ensure these patient-centered reforms become a reality."