Theodore  Roosevelt Jr. ( ROH-zə-velt; October 27, 1858 – January 6, 1919), sometimes referred to by his initials T.R., was an American statesman, politician, conservationist, naturalist, and writer who served as the 26th president of the United States from 1901 to 1909. He served as the 25th vice president from March to September 1901 and as the 33rd governor of New York from 1899 to 1900. He served as the 25th vice president from March to September 1901 and as the 33rd governor of New York from 1899 to 1900. Roosevelt emerged as a leader of the Republican Party and became a driving force for the anti-trust policy while supporting Progressive Era policies in the United States in the early 20th century. After his election victory, Roosevelt decided to drop out of law school, later saying, 'I intended to be one of the governing class.'