In May 1977, Secretary of Transportation Brock Adams questioned extending the Red Line to Glenmont, citing the increased costs projected after engineers determined that the bedrock required building the tracks much deeper than had been anticipated. Under pressure from the Office of Management and Budget and President Jimmy Carter's administration, Adams requested that the line be studied again to determine whether a bus, trolley, or highway would be a good alternative to extending the red line to Glenmont. Montgomery County Executive James P. Gleason responded, saying that the line had been studied extensively already, and he considered pulling all county funding from building the Metrorail system if the Glenmont extension did not go forward.