Slovak National Party
He was a deputy to the parliament of the Kingdom of Hungary from 1905–1910. As a member of the Slovak National Party, the only Slovak party in Austria-Hungary, he became the ideological leader and founder of Slovak agrarianism. He was vice-chairman of the Slovak National Party from 1906-1914. Since the party did not endorse his agrarian program, he planned to create his own political party, but was prevented by the outbreak of World War I.