Arthur Griffith's "Sinn Féin Policy", formulated between 1905 and 1907, called for Irish MPs to abstain from Westminster and sit in a parallel parliament in Dublin. The first Sinn Féin abstentionist candidate was Charles Dolan in 1908. Having sat as MP for North Leitrim for the IPP, he resigned after joining Sinn Féin, and lost the ensuing by-election. Laurence Ginnell's 1909 proposal that the United Ireland League (UIL) adopt abstentionism caused a near-riot; he left the UIL but continued to sit at Westminster until he joined Sinn Féin in 1917. Abstentionism was opposed by most nationalists, especially after the January 1910 general election when the IPP held the balance of power at Westminster and secured passage of the Third Home Rule Bill from the Liberal government. The nationalist mood changed after the 1916 Rising, and the IPP itself withdrew from Westminster in April 1918, to protest against the extension of conscription to Ireland. At the 1916 West Cork by-election, Sinn Féin initially endorsed All-for-Ireland League candidate Frank J. Healy, a supporter interned after the 1916 Rising, but withdrew support when Healy declared his intention to take his seat; the confusion contributed to Healy's defeat.