FILE - In this Nov. 12, 2011 file photo, Republican presidential candidate Rep. Michelle Bachmann, of Minnesota, speaks at the CBS News/National Journal foreign policy debate at the Benjamin Johnson Arena in Spartanburg, S.C. The fluidity of the Republican nomination process and the increased importance of the debates raises questions about whether networks give short shrift to candidates they determine have little chance at reaching the White House. (AP Photo/Richard Shiro, File)