The 2008 housing and financial crashes caused the worst economic crisis since the Great Depression under George W. Bush's administration.
During his first term (2001–2005), he sought and obtained Congressional approval for tax cuts: the Economic Growth and Tax Relief Reconciliation Act of 2001, the Job Creation and Worker Assistance Act of 2002 and the Jobs and Growth Tax Relief Reconciliation Act of 2003. These acts decreased all tax rates, reduced the capital gains tax, increased the child tax credit and eliminated the so-called "marriage penalty", and were set to expire in 2011.
The last two years of his presidency were characterized by the worsening subprime mortgage crisis, which resulted in government intervention to bail out damaged financial institutions and a weakening economy.
The U.S. national debt grew significantly from 2001 to 2009, both in dollar terms and relative to the size of the economy (GDP), due to a combination of tax cuts and wars in both Afghanistan and Iraq. Budgeted spending under President Bush averaged 19.9% of GDP, similar to his predecessor President Bill Clinton, although tax receipts were lower at 17.9% versus 19.1%.
During the George W. Bush administration, the federal government spending was increased from $1789 billion to $2983 billion (70%) but the revenues were only increased from $2025 billion to $2524 billion (25%). Individual income tax revenues were increased by 14%, corporate tax revenues by 50%, customs and duties by 40%. Discretionary defense spending was increased by 107%, discretionary domestic spending by 62%, Medicare spending by 131%, social security by 51%, and income security spending by 130%. Cyclically adjusted, revenues rose by 35% and spending by 65%.