What is the main responsibility of the House of Representatives?

The main responsibility of the House of Representatives is to initiate revenue bills. This constitutional role is established by Article I, Section 7 of the U.S. Constitution, which explicitly states that all bills for raising revenue must originate in the House. This function is critical because it underscores the significance of the House as the legislative body closest to the people, as its members are elected to represent specific districts and thus are more directly accountable to their constituents regarding tax policy and government spending.

While other choices touch on important aspects of governance—such as confirming Supreme Court nominees (which is primarily the role of the Senate), conducting foreign policy (an area that involves cooperation between both houses but is typically led by the executive branch and the Senate), and overseeing the impeachment process (which is indeed a role that involves both the House and the Senate)—they do not capture the specific constitutional responsibility that the House holds in initiating revenue-related legislation. This authority to launch revenue bills establishes the House as a key player in fiscal policy and emphasizes its role in managing the nation's budget and financial health.