Next came the federal budget debates. The Great Recession had caused federal government revenues to fall to their lowest level relative to the economy's size in 50 years. At the same time, safety net expenditures (including automatic stabilizers such as unemployment compensation and disability payments) and stimulus measures caused expenditures to rise considerably. This drove the budget deficit up, creating significant debt concerns. This caused several bruising debates with the Republican Congress. President Obama signed the American Taxpayer Relief Act of 2012, which included the expiration of the Bush tax cuts for high income earners and implemented a sequester (cap) on spending for the military and other discretionary categories of spending. Compared against a baseline where the Bush tax cuts were allowed to expire on schedule in 2010 for all income levels, this law significantly increased future deficits. Compared against the previously years, it reduced the deficit and limited future cost increases. Along with the recovering economy, the law even lowered the deficit back to the historical average relative to GDP by 2014.