 Nationalistic voters blamed the Weimar Coalition for the lost war, for the severe stipulations of the Treaty of Versailles and for domestic unrest by workers like during the Ruhr Uprising.Those on the left felt betrayed by the SPD and the other parties of the political centre for siding with the military and other forces that had already been powerful under the Empire (bureaucracy, industrialists, land owners) against communist or socialist protests.Since SPD, Zentrum and DDP now had only 225 of the 466 Reichstags seats, the old coalition lacked a majority.