<human>:  When was the last time the debt ceiling was raised?
<bot>: The debt ceiling was raised in March of this year. The debt ceiling is a limit on the amount of money the federal government can borrow. The debt ceiling is raised every year by Congress. The current debt ceiling is $21 trillion. The debt ceiling is set by Congress each year and is used to determine how much money the federal government can borrow to pay for spending. The debt ceiling is a major political issue because it is a symbol of the nation’s fiscal health.