With President Obama and Republican leaders calling for cutting the budget by trillions over the next 10 years, it is worth asking how we got here - from healthy surpluses at the end of the Clinton era, and the promise of future surpluses, to nine straight years of deficits, including the $1.3 trillion shortfall in 2010. The answer is largely the Bush-era tax cuts, war spending in Iraq and Afghanistan, and recessions.