On June 28, 2019, 13 U.S. Senators signed a letter to President Donald J. Trump expressing concerns about media reports that USDA Secretary Sonny Purdue is attempting to influence EPA decisions on small refinery waivers under RFS. Similar to the letter submitted to Purdue himself by Senator Kennedy, the 13 Senators express opposition to Secretary Purdue’s involvement in the SRE waivers decision-making process. Also referencing the Clean Air Act and its statutory requirements, the letter urges President Trump to prohibit Secretary Purdue from influencing or interfering with decisions concerning SRE by EPA Administrator Andrew Wheeler. The view expressed in the letter is that “any decisions to further delay, reduce, or deny hardship relief to small refineries, or reallocate the obligations of small refineries to other refineries,” would be the result of Secretary Purdue’s impermissible interference. The letter notes that federal courts would likely view any of the outlined attempts in the same way.