If both the President and the Vice President can no longer serve, who becomes President?

The correct answer is the Speaker of the House, as outlined in the presidential succession line established by the Presidential Succession Act. This law specifies the order in which officials will assume the presidency in the event that both the President and Vice President are unable to serve. The Speaker of the House is the next in line after the Vice President, making them the first congressional leader to inherit the presidency.

This system is designed to ensure a smooth transition of power and maintain government stability, particularly during times of crisis. Other positions such as the Secretary of State, Senate Majority Leader, or Chair of the Joint Chiefs of Staff do not hold the same precedence in the line of succession, as they are further down the list. The speaker's role in the government as the head of the House of Representatives grants them this unique position, reflecting their electoral base and direct representation of the people.