James Abram Garfield (November 19, 1831 – September 19, 1881) was the 20th president of the United States, serving from March 4, 1881, until his death by assassination six and a half months later. He is the only sitting member of the United States House of Representatives to be elected to the presidency.Garfield entered politics as a Republican in 1857. After Abraham Lincoln's election as president, several Southern states announced their secession from the Union to form a new government, the Confederate States of America. Garfield read military texts while anxiously awaiting the war effort, which he regarded as a holy crusade against the Slave Power. After Abraham Lincoln's election as president, several Southern states announced their secession from the Union to form a new government, the Confederate States of America. Garfield read military texts while anxiously awaiting the war effort, which he regarded as a holy crusade against the Slave Power.