Calvin Coolidge to work jointly with Edward T. Clark, a Massachusetts Republican organizer whom he retained from his vice-presidential staff, as Secretaries to the President (a position equivalent to the modern White House Chief of Staff). Perhaps the most powerful person in Coolidge's Cabinet was Secretary of the Treasury Andrew Mellon, who controlled the administration's financial policies and was regarded by many, including House Minority Leader John Nance Garner, as more powerful than Coolidge himself. Secretary of Commerce Herbert Hoover also held a prominent place in Coolidge's Cabinet, in part because Coolidge found value in Hoover's ability to win positive publicity with
Calvin Coolidge as lieutenant governor, Coolidge was a deputy governor functioning as administrative inspector and was a member of the governor's council. He was also chairman of the finance committee and the pardons committee. As a full-time elected official, Coolidge discontinued his law practice in 1916, though his family continued to live in Northampton. McCall and Coolidge were both reelected in 1916 and again in 1917. When McCall decided that he would not stand for a fourth term, Coolidge announced his intention to run for governor. Coolidge was unopposed for the Republican nomination for Governor of Massachusetts in 1918. He and his