If both the president and vice president can no longer serve, who becomes president?

The correct answer is that the Speaker of the House becomes the president if both the president and vice president are unable to serve. This line of succession is established by the Presidential Succession Act. The Speaker, who is elected by the members of the House of Representatives, is next in line after the vice president. This is significant because it ensures a continuity of leadership and a clear order of succession in the executive branch of the government, reflecting the democratic principles of elected representation.

Other positions mentioned, such as the Secretary of State, the Senate Majority Leader, and the Attorney General, do not have this constitutional or statutory authority to ascend to the presidency in the absence of both the president and the vice president. Their roles are important within their respective functions but are not part of the presidential succession line defined by law.