the fourth christie aide or appointee to resign or be fired since the bridge-gate scandal began. samson is a close christy rishr, who like bridget kelly denied to be interviewed. portrayed samson's resignation as unrelated to the scandals that have engulfed his second term. >> david has been talk to me for the better part of a year about wanting to move on because he just was tired. he had served a long time. he's 74 years old and said, chris, i'd like to spend more time doing other thing. >> this month, flag prosecutors subpoenas, related to mr. samson's potential conflicts of interest amid questions over samson's votes to award bridge contracts to two large construction companies that have been represented by his law firm. and former port authority official david wildstein, a man who was heavily criticized in the internal christie report, wrote in the bridge-gate e-mails that samson was helping us to