(Phoenix, AZ) -- Arizonans could see their U.S. Senate candidates debate. Democrat Kyrsten Sinema is challenging Republican Martha McSally to meet for two televised debates. Sinema, in a letter to McSally, said "Arizonans should hear directly from the candidates." She's asking that one debate be held in Phoenix, the other in Tucson, and both be moderated by Arizonan reporters. There's no word yet on McSally's response.