Identify three major staff agencies in Congress. Explain their work.

What will be an ideal response?

?Congressional Research Service is part of the Library of Congress. The approximately 900 staffers help members of Congress to conduct research on issues.
?Government Accountability Office was once merely an auditing agency, but now with approximately 5,000 employees, the agency conducts investigations of policies and makes recommendations.
?Congressional Budget Office advises Congress on the impact of spending programs and estimates future economic trends.