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

1. The Vice President is first in line when the President cannot serve. 2. If the Vice President also cannot serve, the Speaker of the House becomes President. 3. The Speaker leads the House of Representatives, which is one part of Congress. 4. The Chief Justice heads the courts and stays outside this line, so naming the Chief Justice is wrong. _Source: USCIS Civics Flash Cards M-623 (rev. 02/12), public domain, official civics question 31_