Republican presidential candidates will meet Sunday night to chart changes they want to the presidential debates amid mounting criticism of what many of the campaigns say has been an unwieldy and unfair process. The meeting follows the Republican National Committee’s decision on Friday to suspend its debate partnership with NBC News, in response to claims that CNBC moderators mistreated its candidates at Wednesday night’s forum. Sunday's gathering has being described by sources on campaigns and at the RNC as an opportunity to produce reforms that the committee could then present to networks still scheduled to host debates. Regardless of who attends, finding commonality may prove exceedingly difficult.