Party-line vote
From Wikipedia, the free encyclopedia
A party-line vote in a constituent assembly (such as a parliament or house of representatives) is a decision based upon political party affiliation, generally somewhat independent of the merits of the issue at hand or the political beliefs of individual members but instead dictated by party policy or principles.
In the United States Congress it is the function of the party whip of each party in each house to ensure that members adhere to party policies and in particular that members vote for or against bills, amendments, and (in the case of the United States Senate) for or against treaties and Administration appointments as determined by senior party leadership. The leverage available to the party whip may be in rewards, as for example, the negotiation of side deals for pork barrel spending, or in punishments, such as withholding appointments to powerful committees, or the ultimate threat of supporting another candidate in the primary election — a threat made possible by extensive gerrymandering that ensures the subsequent success in a general election of a particular party's candidate. The party whip will operate under the direction of the particular party's leader (called respectively the majority leader or the minority leader).
