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).
Presidency of Dwight D. Eisenhower
Under the original constitutional rules governing the Electoral College, presidential electors were apportioned to states only. As a result, the District of Columbia was excluded from the presidential election process. Several constitutional amendments to provide the district's citizens with appropriate rights of voting in national elections for president and vice president were introduced in Congress during the 1950s. Eisenhower was a persistent advocate for the voting rights of D.C. residents. On June 16, 1960, the 86th Congress approved a constitutional amendment extending the right to vote in presidential election to citizens residing in the District of Columbia by granting the district electors in the Electoral College, as if it were a state. After the requisite number state legislatures ratified the proposed amendment, it became the Twenty-third Amendment to the United States Constitution on March 29, 1961.