Presidency of Jimmy Carter a party platform calling for the establishment of a national health insurance program, Kennedy refused to concede. He instead called for an "open convention", in which delegates would be free to vote for the candidate of their choice regardless of the result in the primaries. Carter's allies defeated Kennedy's maneuverings at the 1980 Democratic National Convention, and Carter and Vice President Mondale won re-nomination. Despite Kennedy's defeat, he had mobilized the liberal wing of the Democratic Party, which would give Carter only weak support in the general election. The 1980 Republican presidential primaries quickly developed into a two-man contest between
USS Jimmy Carter her hull was extended to accommodate a 2,500-ton supplementary middle section with an ocean interface for divers, remotely operated vehicles (ROVs), and special operation equipment; ROV handling system, storage and deployment space for mission systems; and a pressure-resistant passage between the fore and aft parts of the submarine to accommodate the boat's crew. "Jimmy Carter" was christened on 5 June 2004. The ship sponsor was former First Lady Rosalynn Carter. One result of the changes was that "Jimmy Carter" was commissioned more than six years after and almost four months after the commissioning of the first of the subs, .