Twenty-second Amendment to the United States Constitution
As worded, the primary focus of the 22nd Amendment is on limiting individuals twice elected to the presidency from being elected again. Due to this, several issues could be raised regarding the amendment's meaning and application, especially in relation to the 12th Amendment, ratified in 1804, which states, "But no person constitutionally ineligible to the office of President shall be eligible to that of Vice-President of the United States". While it is clear that under the 12th Amendment the original constitutional qualifications of age, citizenship, and residency apply to both the president and vice president, it is unclear whether someone who is ineligible to be elected president could be elected vice president. Because of this apparent ambiguity, there may be a loophole in the 22nd Amendment whereby a two-term former-president could be elected vice president and then succeed to the presidency as a result of the incumbent's death, resignation, or removal from office (or even succeed to the presidency from some other stated office in the presidential line of succession).
Powers of the President of Singapore
The original Article 22H of the Constitution provided the President with personal discretion to withhold assent to any bill (other than a bill to which Article 5(2A) applies) which provided directly or indirectly for the circumvention or curtailment of the discretionary powers conferred upon the President by the Constitution. At that time, Article 5(2A) provided that the President could prevent Parliament from passing a bill seeking to amend certain specified clauses of the Constitution, including those dealing with the President's powers, unless it had been supported by not less than two-thirds of the votes cast at a national referendum. However, as Article 5(2A) was not yet in force, a question arose as to whether the Government was entitled to amend the Constitution in a way that circumvented or curtailed the President's discretionary powers, or whether Article 22H prohibited this entirely.