If the President can no longer serve, who becomes President?

The Vice President becomes President if the President can no longer serve. This succession is established by the Presidential Succession Act and the 25th Amendment to the U.S. Constitution. The Vice President is the first in line to assume the presidency in the event of the President's death, resignation, removal from office, or incapacitation. This ensures a stable and predictable transition of power, maintaining the continuity of government and leadership.

The other options represent positions that do not have direct succession rights to the presidency in this scenario. The Speaker of the House and the Secretary of State follow the Vice President in the line of succession, and the Chief Justice's role is primarily judicial, not executive.