United States presidential election, 1864
Abraham Lincoln was a dead man walking. Though he would live another twenty years, dying naturally on Good Friday in 1885, he was a spent political force in 1864. The fact that he even retained the Republican nomination merits attention.
The best friend a man can have is a poor enemy, and unlike in the War of Secession, Lincoln had those aplenty in the Republican Party. Chief among them was Salmon Chase, a man of great integrity and even greater ambition who served as Lincoln's Secretary of Treasury. Chase had used his position and his abolitionism to build a network of political patrons and supporters. Lincoln was well aware of these shenanigans, but chose to overlook them.
There was some wisdom in this, as the political winds were blowing against abolitionism, and allowing a radical splinter group to fulminate against him helped Lincoln secure his right flank. He also cannily predicted that this splinter group would splinter again, as John C. Fremont, the 1856 GOP nominee, clearly wished to try again. Lincoln had publicly overruled Fremont when the latter, as a general, had attempted to free Confederate slaves on his own hook, becoming a radical hero in failure.
These radicals met at at their own convention in May 1864 - they hoped that by threatening a third-party candidacy, Lincoln could be persuaded to step aside and allow the abolitionist to control the party. But Lincoln's allies, most notably the Blair family, succeeded in manipulating the radicals into ensuring that both ambitious contenders, Chase and Fremont, were put into nomination, along with Lincoln. With the convention deadlocked the Blairs, who controlled the Missouri and Maryland delegations, staged a walkout of the Fremont faction, leaving the Radicals to nominate a weakened Chase, who would later withdraw when it became clear that his backers had abandoned him.
Fremont, who only now realized how badly he had been used, attempted to make a comeback at the GOP convention the next month, but his legs had been cut out from under him. Moderates dominated the ranks of the delegates, and Lincoln was easily re-nominated, along with his 1860 running mate, Hannibal Hamlin of Maine. Lincoln was not especially fond of Hamlin, and only kept him on the ticket after Pennsylbania Jeremiah Black, a staunch unionist in Buchanan's cabinet, declined the offer. In the end, the rumblings of discontent among the abolitionists over te Chase-Fremont affair compelled Lincoln to retain Hamlin. (Had Lincoln his choice, he would have nominated Black or Montgomery Blair of Maryland, his former Postmaster General and current Attorney General, but the Blairs had become antathema t much of the party after the Radical Republican fiasco.)
There was little such drama on the other side, where Governor Horatio Seymour of New York marched to an easy triumph at the Democratic National Convention, winning a two-thirds majority on the second ballot. His only real opposition came from another Seymour, Thomas from Connecticut, who attracted scattered New England votes, and Speaker of the House Daniel Voorhees of Indiana, the candidate of the western Democracy. (Voorhees declined the offer of the Vice-Presidency; it was then extended to Rep. George Pendleton of Ohio, who accepted.) Seymour favored concluding the treaty with the Confederates and putting the matter to rest; he was put somewhat on the defensive when Lincoln successfully concluded a treaty that retained Missouri, West Virginia, and the District of Columbia and the New Mexico Territory, ceding only Kentucky and the Indian Territory. (Confederate historians have long alleged that British mediator, the diplomat Lord Lyons, had shown undue favor the United States. It is known that Lyons was frequently in poor health, and would depart North America permanently shortly after the signing. )
Lincoln's last ditch appeal to the patriotism of the North may have slowed the bleeding, but nothing could have stopped it. The Republican party had lost its majority in the House in 1862, and now the Senate followed. Lincoln was defeated by a huge margin (though ironically, he won almost exactly as many votes as he had four years previously).
Abraham Lincoln/Hannibal Hamlin: 52 electoral votes, 44% of the vote
Horatio Seymour/George Pendleton: 170 electoral votes, 54% of the vote
Lincoln's efforts to stand up for the border states paid off to some extent, as he won West Virginia and Missouri, and in general did better than in the belt of counties bordering the South than he had in 1860. He also performed well in the upper North, winning most of New England's votes as well as the Plains states. But heavy defections in the lower North doomed the campaign; the Democratic ticket went into the election with a stranglehold on New York and Ohio, which made Lincoln's path to re-election exceedingly narrow. When the early returns from Pennsylvania had the Republican ticket running behind 1860, the President knew it was over. His last act as President would be to spend his lame-duck winter persuading Congress to pass the proposed Thirteenth Amendment banning slavery and send it to the states for ratification. He succeeded, but like his own career, the Thirteen Amendment would not be concluded for nearly two decades.