He failed, walked out, and founded the so-called 'Bull Moose' Party which called for wide-ranging progressive reforms. He ran in the 1912 election and the split allowed the Democratic nominee Woodrow Wilson to win the election. Following the defeat, Roosevelt led a two-year expedition to the Amazon basin where he nearly died of tropical disease. Roosevelt found allies in the local Republican Party, and he defeated an incumbent Republican state assemblyman closely tied to the political machine of Senator Roscoe Conkling. After his election victory, Roosevelt decided to drop out of law school, later saying, 'I intended to be one of the governing class.' On September 6, 1901, President McKinley was attending the Pan-American Exposition in Buffalo, New York when he was shot by Leon Czolgosz. Roosevelt was vacationing in Vermont, and traveled to Buffalo to visit McKinley in the hospital. It appeared that McKinley would recover, so Roosevelt resumed his vacation in the Adirondacks.