Need I say more?
Personal disposable income has grown nearly 6 times more under Democratic presidents
Gross Domestic Product (GDP) has grown 7 times more under Democratic presidents
Corporate profits have grown over 16% more per year under Democratic presidents (they actually declined under Republicans by an average of 4.53%/year)
Average annual compound return on the stock market has been 18 times greater under Democratic presidents (If you invested $100k for 40 years of Republican administrations you had $126k at the end, if you invested $100k for 40 years of Democrat administrations you had $3.9M at the end)
Republican presidents added 2.5 times more to the national debt than Democratic presidents
The two times the economy steered into the ditch (Great Depression and Great Recession) were during Republican, laissez faire administrations