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Greenfield, Jeff. Then Everything Changed: Stunning Alternate Histories of American Politics: JFK, RFK, Carter, Ford, Reagan. Putnam's 2011.

Greenfield, Jeff. Then Everything Changed: Stunning Alternate Histories of American Politics: JFK, RFK, Carter, Ford, Reagan
Summary: Collection of three long novellas based on an early assassination of John F. Kennedy, a longer life for Robert Kennedy, and Ford's defeat of Carter.
Published: Putnam's 2011 (0399157069BUY).

Greenfield, Jeff. "Palm Beach, Florida - December 11, 1960, 9:45 a.m."
Divergence: 1960 CE
What if: John F. Kennedy was killed by a mad bomber days before the Electoral College would have voted to make him president.
Summary: Lyndon Johnson became president in 1961 following a brief constitutional crisis. The start of his presidency is highlighted by forcing through the Voting Rights Act of 1961, but the promise turns to dust after Soviet missiles are discovered in Cuba.
Published: In Then Everything Changed: Stunning Alternate Histories of American Politics: JFK, RFK, Carter, Ford, Reagan, q.v.

Greenfield, Jeff. "Ambassador Hotel, Los Angeles California - June 4, 1968, 11:45 p.m."
Divergence: 1968 CE
What if: Robert Kennedy was not assassinated by Sirhan Sirhan.
Summary: Kennedy's tough fight to defeat Humphrey for the Democratic nomination and Nixon for the presidency, plus the withdrawal from Vietnam, the first two years of his presidency and the "dirty tricks" scandal that went away.
Published: In Then Everything Changed: Stunning Alternate Histories of American Politics: JFK, RFK, Carter, Ford, Reagan, q.v.

Greenfield, Jeff. "Palace of Fine Arts, San Francisco, California - October 6, 1976, 7:00 p.m."
Divergence: 1976 CE
What if: Gerald Ford corrected himself after mis-speaking during a presidential debate against Jimmy Carter, and subsequently won the Electoral College vote for president, but not the popular vote.
Summary: The economic mess of Ford's full term, including the 1979 gas crisis provoked by the Saudi-Iranian rivalry, leads to a very different 1980 presidential campaign, with Reagan unable to run against Washington and Gary Hart seeking to overturn Ted Kennedy's presumed coronation.
Published: In Then Everything Changed: Stunning Alternate Histories of American Politics: JFK, RFK, Carter, Ford, Reagan, q.v.