McSally supported the March 2017 version of the American Health Care Act, and voted on May 4, 2017, to repeal the Affordable Care Act and pass a revised version of the American Health Care Act. Before voting on the bill, she declined to answer questions by reporters on where she stood, saying "I'm not publicly sharing my position." According to the Associated Press, on the date of the vote McSally stood up at a meeting of the House Republican Conference and told her colleagues to get this "fucking thing" done. The version of the American Health Care Act that she voted for had not been scored by the nonpartisan Congressional Budget Office; the previous version of the bill was estimated to cause 24 million Americans to become uninsured by 2026. The revised version of the bill allowed states to ask for a waiver that would allow insurers to charge individuals with preexisting conditions more. McSally said the bill was "not perfect" but that it was better than the "failed system" of the Affordable Care Act. After the AHCA passed, McSally proposed a stand-alone bill to strike the exemption of Congress from state waiver provisions; it passed by a 429–0 vote and would require 60 votes to pass the U.S. Senate.