Polish Diet

The Polish Diet appears in The Federalist as a cautionary example of legislative decision rules that produce impotence, perplexity, and disorder. It is invoked alongside the Roman Tribuneship and the States-General of the Netherlands to argue that requiring more than a majority—especially a fixed proportion of a body's full membership—can impede government and give a minority effective power over the majority.

Institutional Role in the Argument

The Polish Diet is not described through a detailed account of its membership or proceedings. Instead, it enters a comparative argument about the practical effects of supermajority requirements. The essay contends that a rule demanding two-thirds of all members, rather than two-thirds of members present, would often make a decision impossible when some members did not attend. Under those circumstances, the nominal supermajority requirement could amount in practice to unanimity.

The Problem of Fixed Thresholds

The argument distinguishes a threshold calculated from the full membership from one calculated from those attending. A fixed proportion of the whole body makes a determinate number of votes necessary regardless of attendance, which, the essay reasons, weakens incentives for members to appear. A threshold based on the members present instead makes the body's capacity to act more sensitive to attendance and therefore encourages punctuality. By keeping more members present, this arrangement could often produce decisions supported by as large a number as the alternative, while causing fewer delays.

Historical Comparison and Constitutional Stakes

The Polish Diet is grouped with the Roman Tribuneship and the States-General of the Netherlands as evidence for the claimed historical pattern: where the principle of requiring more than a majority has prevailed, political institutions have been marked by impotence, perplexity, and disorder. The essay says that examples at home make foreign precedents unnecessary, but names these bodies to show that the danger is not merely theoretical or peculiar to the proposed system.

The immediate issue is the Senate's treaty vote: whether approval should require two-thirds of members present or two-thirds of the Senate's total membership. The comparison supports the former rule as a compromise between securing broad agreement and preserving the activity of public councils. The discussion also sets that proposed procedure against the Confederation Congress, where states vote as units and a state's vote is lost if only one member is present to represent it. Because Senate members would vote individually, the essay argues that the number of active Senate votes would rarely be lower than the active voices in the existing Congress; the President's participation would provide an additional safeguard against improper treaty-making. The Polish Diet's function in this reasoning is therefore precise: it illustrates how a demanding voting threshold can impair collective action, while the proposed attendance-based threshold is presented as a way to retain deliberation without making action depend on unanimity.