Author of numerous publications political and economic nature in a number of newspapers: "Kievlyanin", "Kievskoye slovo" in the magazine "Life and Art" (as a staff member), in the newspapers "Podolyanin", "Svet", "Moskovskiye Vedomosti", "Novoye Vremya", "Odessa Leaf" and others IV State Duma deputy in the nationalist faction and the moderate right (1912-1915). One of the organizers and leaders of the parliamentary faction of progressive nationalists (1915-1917).
Commissar of the Provisional Committee of the State Duma and the Provisional Government.
Deputy chairman of Russian voters, nonpartisan unit (1919). Author of the booklet "Little Russians or Ukrainians?" (1919).
Emigrated from Russia in 1920, but the following year he returned secretly to Soviet Russia, where he was hiding under a false name. Died in Kerch in 1922.