One bishop had already responded to the letter. Rev. Robert Carlson, bishop of Sioux Falls replied to Brown's concerns as they relate to Senate Minority Leader Tom Daschle. "[W]hile Senator Thomas Daschle lists himself as a Catholic, it is my understanding that he neither attends church nor receives Holy Communion on the rare occasions when he is in church," Carlson wrote. "I have documented this, and again would be interested if you have information to the contrary."