As reported by Politico, President Obama's White House Chief of Staff, William Daley (photo left), has sent a letter to the five U.S. Nuclear Regulatory Commissioners, urging them to seek a mutually trusted third party arbiter to help them ease their internal conflicts and communications break down. Daley also responded to a request by U.S. Rep. Darrell Issa (R-CA), Chairman of the U.S. House Oversight and Government Reform Committee, that a White House representative testify at a hearing tomorrow about the conflict, with all five NRC Commissioners also at the witness table. Daley rejected Issa's request.