Listen to Americans First Act of 2013 - Prohibits the obligation or expenditure of federal funds for travel outside the United States or its territories by the Administrator of the Environmental Protection Agency (EPA) until: (1) EPA conducts public listening sessions on rulemaking targeting carbon dioxide emissions from existing power plants in each of the 15 states with the highest percentage of electricity generated by coal in 2012 (West Virginia, Kentucky, Wyoming, Indiana, Missouri, North Dakota, Utah, Nebraska, New Mexico, Ohio, Colorado, Kansas, Iowa, Montana, and Wisconsin); and (2) the Administrator certifies to Congress that such sessions have taken place.