When one realizes that all economic recessions since 1953, except one brief one in 1980 under Jimmy Carter, occurred under Republican Presidents, it makes it an important issue for the upcoming Presidential Election of 2020.
It turns out that the three longest economic expansions since World War II took place under Democratic Presidents as follows:
128 months–from June 2009 to February 2020—occurring under Barack Obama, and President Donald Trump benefiting from it for three years as a carryover.
120 months–from March 1991 to March 2001–ironically not helping Republican President George H. W. Bush, and with Bill Clinton presiding over every month of his Presidency seeing economic expansion.
106 months–February 1961 to December 1969–under John F. Kennedy after first month all the way through Lyndon B . Johnson, and carrying over for 11 months for Republican President Richard Nixon.
So four of the last five Democratic Presidents had superb records of economic expansion, with Bill Clinton and Lyndon B. Johnson having such conditions throughout their Presidencies, and John F. Kennedy all but the first month, and Barack Obama all but five months.
But even under Jimmy Carter, expansion went on from his inauguration in January 1977 until January 1980, as part of economic growth that began under Republican President Gerald Ford in March 1975. Had the economy not gone downhill in 1980, it is likely that Carter might have defeated Ronald Reagan!
Quite a record for Democrats to brag about on the campaign trail!