The purpose of congressional hearings is to investigate issues, gather information, and oversee government operations. These hearings allow lawmakers to question witnesses, including experts and officials, to gain insights into specific topics. They serve as a tool for accountability and transparency, enabling Congress to assess legislation and the implementation of laws. Furthermore, hearings can inform the public about critical issues and influence public opinion, ultimately leading to informed legislative decisions. They also play a significant role in the checks and balances of government.