http://thinkprogress.org/2008/09/17/palin-mccain-shut-down-troopergate/McCain campaign sends lawyer to Alaska to shut down ‘Troopergate’ investigation.»
On September 2, Alaska Gov. Sarah Palin (R) filed an ethics complaint against herself with the state’s Personnel Board in an effort to move the “Troopergate” investigation from the state’s legislature to the three-member board she oversees. Yesterday, Ed O’Callaghan, a former U.S. Attorney that the McCain campaign sent to Alaska to advise Palin’s lawyers on the case, said Palin “is 100 percent going to cooperate with the Personnel Board inquiry.”
McCain was rebuked for his poor judgment during the Keating five mess, the senate ethic committee didn't feel they had jurisdiction to punish Senator McCain because when he took his bribes he had been a congressman, a dodge but that was their reason. My guess it really had more to do with the fact that he was the only republican caught in the net.