During 1919 – 1921 his leadership was reduced to six Nationalist MPs . His attempts to achieve a united nationalist front was undermined because of resentment by west Ulster nationalists of his acceptance of temporary partition as the price for a Home Rule settlement in 1916 . He avoided any involvement in All-Ireland politics having accepted that the mandate had passed to Sinn Féin . Although , when he tried to bring up the Croke Park killings that occurred on Bloody Sunday at Westminster , he was shouted down and physically attacked by Conservative MP John Elsdale Molson ; the Speaker had to suspend the sitting
Bloody Sunday
Bloody Sunday (1920)
Joseph Devlin