In October 2019 Tester was one of 27 senators to sign a letter to Senate Majority Leader Mitch McConnell and Senate Minority Leader Chuck Schumer advocating the passage of the Community Health Investment, Modernization, and Excellence (CHIME) Act, which was set to expire the following month. The senators warned that if the funding for the Community Health Center Fund (CHCF) was allowed to expire, it "would cause an estimated 2,400 site closures, 47,000 lost jobs, and threaten the health care of approximately 9 million Americans."