washington/new york david nason general electric executive former treasury department official front runner become federal reserve top wall street regulator president-elect donald trump source familiar screen say thursday nason lead ge energy financial service division fund worldwide energy development mostly thermal renewable source 2008 nason deputy treasury secretary henry paulson u.s. regulators try stabilize wall street prevent economic meltdown house market collapse trump chance nominate feed vice chair supervision role conceive wake financial collapse watchdog wall street nason tap role would senior rule-writer wall street large say lead bank supervise day day recent weeks name float vice chair candidates boast support wall street representative french hill arkansas republican former banker favor bank industry washington lobbyists favor paul atkins former commissioner securities exchange commission final decision make fill job nason paulson back become front runner recent weeks source say last several weeks nason meet trump senior economic advisers gary cohn steve mnuchin accord one source familiar meet trump spokesperson decline comment trump name cohn head white house national economic council nominate mnuchin treasury secretary cohn mnuchin hold senior roles goldman sachs hear directly paulson company former chief executive nason solid pick accord another source familiar screen nason immediately respond call comment spokesman paulson decline comment paulson memoir brink former cabinet secretary single nason praise financial crisis nason former treasury official vet feed role source