let's see.
first black president of harvard law review, senator from illinois, two landslide presidential victories, lily ledbetter fair pay act, american recover and reinvestment act (biggest tax cut for the american people in history), obamacare, wall street reform via dodd-frank, legalized gay marriage, cut the deficit by a trillion dollars (biggest savings in history), created 20+ million new jobs with a record number of consecutive months of job growth, tripled the stock market, 8 years of scandal free presidency with no indictments or convictions and no sexual harassment accusations, left office with a 65% approval rating.
gee, you might just be a dumb racist, or very forgetful.