Lawmaking differs notably between the House and Senate in the United States primarily due to their distinct structures and procedures. The House, with its larger membership, operates under more formal rules, including strict time limits for debate and a majority vote requirement for passing legislation. Conversely, the Senate allows for more open debate and uses mechanisms such as the filibuster that can prolong discussions. Additionally, the Senate often requires a supermajority for certain actions, like ending debate or confirming appointments. These procedural differences shape how legislation is crafted, debated, and ultimately passed in each chamber.