On 14 June 1910 his land reform measures became a full-fledged law. He had proposed spreading the system of zemstvo to the southwestern provinces of Asian Russia. It was originally slated to pass with a narrow majority, but Stolypin's political opponents stopped it. "Stolypin resigned in March of 1911 from the fractious and chaotic Duma after the failure of his land-reform bill". Tsar Nicholas II decided to look for a successor to Stolypin and considered Sergei Witte, Vladimir Kokovtsov and Alexei Khvostov.