During the last two years of the Clinton administration – when there was a Democratic President and Republican Congress – budget deficits were reduced, and (if the numbers are real), the federal government was actually running a surplus.
Wikipedia states: “The surplus in fiscal year 2000 was $237 billion—the third consecutive surplus and the largest surplus ever.”
Graph from Wikipedia.
According to Politico, in 2009, when the Barack Obama took office, the budget deficit was $1.4 trillion, and in 2015 it is projected to be $478 billion.