Final answer:
Presidents Bush and Obama increased government spending in the late 2000's due to the recession, challenging circumstances like the Iraq War and the financial crisis, as well as policies for healthcare, education, and social security.
Step-by-step explanation:
In the time period of the late 2000s, both the Presidents Bush and Obama increased government spending for various reasons. One prime reason was the recession that started in the year 2007, which led to a decrease in tax revenues, and incomes and an increase in total spending to stimulate the economy.
Additionally, both presidents at that time faced significant challenges such as the Iraq War and the financial crisis, which naturally required increased spending on defense and economic recovery programs. Lastly, the presidents also implemented policies to address healthcare, education, and social security, which contributed to the increase in government spending.