“Carson then said that Trump had promised him a role in his administration, “certainly in an advisory capacity.” Asked by NewsMax’s Steve Malzberg whether this meant a cabinet position, Carson declined to “reveal any details about it right now, because all of this is still very liquid.”

Federal law expressly prohibits candidates from directly or indirectly promising “the appointment of any person to any public or private position or employment, for the purpose of procuring support in his candidacy.” The penalty for violations could include fines or a year in jail — two years if the violation was willful.”

Well isn’t this interesting.
ThinkProgress