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).
Paul Wellstone
In 1999, Wellstone formed an exploratory committee to run for President of the United States in the 2000 election. After campaigning in the early primary states, he announced he would not seek the presidency because of sustained physical limitations from a college wrestling injury. His condition was later diagnosed as multiple sclerosis. As Senator, Wellstone authored the Wellstone Amendment for the Bipartisan Campaign Reform Act of 2002. His efforts toward campaign finance reform were posthumously overturned in 2010 by the U.S. Supreme Court in "Citizens United v. Federal Election Commission". In 2002, he was the only Senator facing reelection to vote against the congressional authorization for the Iraq War.