Letter to Acting SEC Chairman Piwowar on the Congo Conflict Minerals Rule, February 23, 2017
Letter to Congress Regarding Funding for Global Health and to Combat HIV/AIDS and Other Infectious Diseases, March 4, 2003
Letter to Congress on Funding to Combat HIV-AIDS Tuberculosis Malaria, April 30, 2003
Letter to U.S. Senate Regarding Foreign Aid and Global AIDS Act, October 16, 2003
Letter to Congress on the Conflict Minerals Trade Act and the Democratic Republic of the Congo, December 17, 2009