Rufus King, a signer of the United States Constitution and member of the U.S. Senate and 1816 Federalist Party presidential nominee, proposed a 20 year term for the U.S. President. That inspired me to to think about that as a point of diversion
Alternate US Presidents with 20 year terms
George Washington April 30, 1789 - December 14, 1799
Washington would have died in office and the presidency would have passed to John Adams.
John Adams December 14, 1799- March 4, 1809
He would be defeated in 1808 presidential race.
Thomas Jefferson March 4, 1809-July 4, 1826
With the death of Vice President George Clinton in 1812, the office would have remained vacant. Upon President Jefferson's death and as controlled by the Presidential Succession Act of 1792, the Presidency would have passed to Speaker of House of Representatives, John W.Taylor.
John W. Taylor July 4, 1826- March 4, 1829
Taylor pledged immediately upon becoming President that he would only serve out Jefferson's uncompleted presidential term.
Andrew Jackson March 4, 1829- June 8, 1845
Jackson died at the helm and ended one the longest presidential terms. His presidency was marked by the same hawkish tendencies Jackson had shown as a soldier.
John Calhoun June 8, 1845 - March 4, 1849
A curious combination with the "all Union" Jackson, Calhoun served out Jackson's term and retreated to South Carolina and died in 1850. President Calhoun became a hero to many secessionist politicians in the years ahead.
Lewis Cass March 4, 1849 - June 17, 1866
Cass was dedicated to a the concept of popular sovereignty where states could decided their own course on slavery. Fiercely committed to preserving the Union, he was not hesitant to use federal military power against Southern rebellions.
Jefferson Davis - June 17, 1866 - March 4, 1869
Serving out the remainder of Cass' presidential term. Davis, who threw his lot in the South, finished up his presidential term and immediately returned to Mississippi and threw his support behind the new Re-constituted States of America of Southern and border states and New York City.
So from where I sit I see the United States electing a strongly pro-Union to face down the revolting Re-constituted States of America (RSA). Who would be the US President after the 1868 election?