In his post-presidential years, Tyler opposed limitations on the expansion of slavery and after the 1860 election of Abraham Lincoln wrote, “The day of doom for the great model republic is at hand.” As southern states began to secede, Tyler in early 1861 chaired an unsuccessful peace conference in a last-ditch attempt to preserve the Union. Once the Civil War began, however, Tyler voted for Virginia to leave the nation over which he once presided. He led the committee negotiating the terms of Virginia’s admission into the Confederacy and won election to the Confederate House of Representatives. He died, however, on January 18, 1862, before taking his seat.
A Confederate flag draped Tyler’s coffin as it was brought for burial to a Richmond, Virginia, cemetery. While bells tolled and flags were lowered to half-staff in the Confederate capital, silence greeted the news of Tyler’s death in the country he betrayed. Lincoln did not issue the customary official proclamation to observe Tyler’s passing, while the New York Times obituary noted that he had left the presidency as “the most unpopular public man that had ever held any office in the United States.”
Some of Tyler’s successors didn’t think very highly of him either. Harry Truman called him “one of the presidents we could have done without.” “He has been called a mediocre man; but this is unwarranted flattery,” said Theodore Roosevelt. “He was a politician of monumental littleness.”
Tyler hasn’t rated highly in the eyes of historians, either. He was ranked in the bottom five presidents in C-SPAN’s 2017 Presidential Historians Survey, along with Warren Harding, Franklin Pierce, Andrew Johnson and James Buchanan. What may have saved Tyler from the ranking’s bottom spot were his foreign policy achievements, including the signing of the Webster-Ashburton Treaty that formalized the U.S.-Canada border, negotiation of the first U.S.-China treaty, and securing congressional approval of the admission of Texas to the Union.
His most enduring mark on the presidency, however, was the “Tyler Precedent” that the vice president automatically assumes the office of the presidency after the death of a president. Seven subsequent vice presidents assumed the presidency following the demises of their predecessors until presidential succession was finally codified in the 25th Amendment, which was ratified in 1967.