WASHINGTON, Oct. 27 -- Rep. Markwayne Mullin, R-Oklahoma, issued the following news release: Recently, Congressman Markwayne Mullin (OK-02) joined Rep. Ralph Norman (SC-05) in sending a letter to Secretary of Defense Lloyd J. Austin, seeking information from the Department of Defense Health Agency (DHA) regarding its newly re-negotiated contract with Cigna/Express Scripts (ESI). This contract removes the option for many TRICARE beneficiaries to utilize the pharmacy of their choice. This letter has the support of the National Community Pharmaci more PR