The Speaker of the House has several major constitutional roles. Here are the three main duties of the Speaker of the House:

1. Presiding over the House: The Speaker presides over the House of Representatives and maintains order, manages its proceedings, and governs the administration of its business. The Speaker also supervises and directs the daily order of business, certifies all measures passed, assigns committee leadership, and names members to select committees.

2. Controlling the order of business: The Speaker controls the order of all institutional business on the House floor. The Speaker manages business on the floor and navigates legislative rules, structuring House debate in a way that will advantage their legislative priorities.

3. Representing the majority party: The Speaker is the majority political party leader in the House, which on its own is one of the most powerful jobs in Washington. The Speaker is the most visible and authoritative spokesperson for the majority party in the House, articulating an agenda and explaining legislative action to other Washington officials as well as the public. The Speaker also oversees House committee assignments and collaborates with the powerful House Rules Committee to structure floor debate.