the party out of office―the party out of power―the outs―the Opposition
the Constitutional Party―the Constitutionalists
the conservative party―the conservatives
the democratic party―(米国のは)―the Democrats
the Progressive Party―the Progressionists
the revolutionists
the Imperialists
the moderate party―the moderates
a Liberal
the Liberal Party―the Liberals
the opposition party
the communists―the collectivists
the trimmers
a group of people that belong to 'muto-ha'
the power of a political party
a partisan
the socialists
a faction