This is a list of political jobs held by the 44 presidents of the United States and the five leading Democratic candidates, over and above city council, state legislator, governor, representative, senator, and vice president.
George Washington: Surveyor of Culpeper County
John Adams: None
Thomas Jefferson: Secretary of State of Virginia (3 years); U.S. Secretary of State
James Madison: U.S. Secretary of State
James Monroe: U.S. Secretary of State; U.S. Secretary of War
John Quincy Adams: U.S. Secretary of State
Andrew Jackson: Prosecutor for Western North Carollina; Judge of the Tennessee Supreme Court
Martin Van Buren: Surrogate of Columbia County; Attorney General of New York; U.S. Secretary of State
William Henry Harrison: None
John Tyler: Virginia Governor's Council (1 year)
James K. Polk: Clerk of the Tennessee Legislature (3 years)
Zachary Taylor: None
Millard Fillmore: Comptroller of New York
Franklin Pierce: Chairman of the New Hampshire Democratic Committee
James Buchanan: U.S. Secretary of State
Abraham Lincoln: Postmaster of New Salem, Illinois
Andrew Johnson: Mayor of Greenville, TN
Ulysses S. Grant: Acting U.S. Secretary of War
Rutherford B. Hayes: City Solicitor of Cincinnati
James A. Garfield: None
Chester A. Arthur: Chairman of the New York City Republican executive committee (6 years); Collector of the Port of New York (7 years); Chairman of the New York State Republican Executive Committee (2 years)
Grover Cleveland: Assistant DA of Erie County (2 years); Sheriff of Erie County (2 years); Mayor of Buffalo
Benjamin Harrison: Commissioner for the U.S. Court of Claims; Indianapolis City Attorney
William McKinley: Prosecuting Attorney of Stark County, NY
Theodore Roosevelt: U.S. Civil Service Commission; New York City Police Commissioner; Asst. U.S. Secretary of the Navy
William Howard Taft: Assistant prosecutor for Hamilton County (2 years); Collector of Internal Revenue (5 years); Judge of the Superior Court of Cincinnati (6 years); U.S. Solicitor General; Governor-General of the Philippines (2 years); Provisional Governor of Cuba (1 year); Secretary of War
Woodrow Wilson: None
Warren G. Harding: Lt. Gov. of Ohio
Calvin Coolidge: City Solicitor of Northampton; Mayor of Northampton; Lt. Gov. of Massachusetts
Herbert Hoover: Director of the United States Food Administration; U.S. Secretary of Commerce
Franklin D. Roosevelt: Asst. Secretary of the Navy; Taconic State Park Commission (4 years)
Harry S. Truman: Judge of Jackson County, MO
Dwight D. Eisenhower: None
John F. Kennedy: None
Lyndon B. Johnson: Head of the Texas National Youth Administration
Richard Nixon: None
Gerald Ford: None
Jimmy Carter: None
Ronald Reagan: None
George H. W. Bush: Chair of the RNC (2 years); Director of the CIA (1 year)
Bill Clinton: Atty. General of Arkansas (2 years)
George W. Bush: None
Barack Obama: None
Donald Trump: None
Joe Biden: None
Elizabeth Warren: TARP oversight panel
Bernie Sanders: Mayor of Burlington, VT
Pete Buttigieg: Mayor of South Bend, IN
Amy Klobuchar: County Attorney of Hennepin County, MN