"The qualifications for President are spelled out in the Constitution. Article II specifies that the President must be at least 35 years old, born a US citizen and must have lived here for the past 14 years. It also specifies that he must take the oath of office before he can assume his duties.

The 12th Amendment changed the method of election slightly. Before that, t...

"The qualifications for President are spelled out in the Constitution. Article II specifies that the President must be at least 35 years old, born a US citizen and must have lived here for the past 14 years. It also specifies that he must take the oath of office before he can assume his duties.

The 12th Amendment changed the method of election slightly. Before that, the first place winner became President and the second place finisher became Vice President. The 12th Amendment specified that electors would vote for a President and Vice President. It also stated "no person constitutionally ineligible to the office of President shall be eligible to that of Vice-President of the United States."

The 22nd Amendment added the additional restriction:

"No person shall be elected to the office of the President more than twice, and no person who has held the office of President, or acted as President, for more than two years of a term to which some other person was elected President shall be elected to the office of the President more than once."