Salmon Portland Chase was an American politician and jurist who served as the sixth chief justice of the United States from 1864 to his death in 1873. Earlier, he had served as the 25th United States Secretary of the Treasury in the Abraham Lincoln administration from 1861 to 1864, during the American Civil War. Chase also served as the 23rd Governor of Ohio from 1856 to 1860, and represented Ohio in the United States Senate from 1849 to 1855 and again in 1861. Chase is therefore one of the few American politicians who have held constitutional office in all three branches of the federal government, in addition to serving in the highest state-level office. From the 1850s onward, even as Chief Justice, Chase unsuccessfully sought a presidential nomination.