How many New York Yankees World Series wins came when a democratic president was in office?

Through the 2010 season, of the 27 World Series championships won by the Yankees, 20 have been won while a Democrat was in office:

1) Franklin Roosevelt - Yankees won the World Series in 1936, 1937, 1938, 1939, 1941, 1943.

2) Harry Truman - 1947, 1949, 1950, 1951, 1952.

3) John Kennedy - 1961, 1962.

4) Jimmy Carter - 1977, 1978.

5) Bill Clinton - 1996, 1998, 1999, 2000.

6) Barack Obama - 2009

The 7 World Series won when a Republican was in office:

1) Calvin Coolidge - 1923, 1927, 1928.

2) Herbert Hoover - 1932

3) Dwight Eisenhower - 1953, 1956, 1958.