Progressive Party

Progressive Unity
Progressive Unity, formerly the Bull Moose faction, is the more moderate faction of the Progressive Party, and historically the dominant one. Formed after the merger of the Progressive and Socialist Party, they represented former members of Roosevelt's Progressive Party. It had effectively full control of the party after the 2nd Red Scare, where many members of the Socialists were imprisoned by the government. Since 2016 the faction has become less dominant as the Socialist faction continues to grow. They are strongest on the East Coast and in the Midwest.

Socialist
The Socialist faction of the Progressive Party represents the former membership of the historic Socialist Party. Once a strong faction of the party, it lost much of its support during the Cold War, as fears of communism led to socialist movements being increasingly marginalized. The faction was reorganized under the leadership of Michael Harrington during the 1970s and 80s, with the party increasingly focusing on democratic socialism over more radical ideas. With the rise of Bernie Sanders, the faction has seen a large boost in its membership and power. The Socialist faction is now the largest faction in the party by membership, though Progressive Unity leads in membership in Congress and the NPC as they gain more support from party members unaffiliated with any faction. They are strongest on the West Coast and in New England, especially in Vermont.

Populist
The Populist faction was formed by former members of the Populist Party. They generally prioritize the interests of farmers and rural citizens, leading to them often clashing with more environmentalist factions of the party. They are the most moderate faction, with many members being to the right of the Liberal Party socially, but to the left of it economically. Populists are often seen as a vestigial faction of the party; they vote as an independent bloc instead of voting with the rest of the party, they represent a significantly older, whiter, and more religious voting bloc than the rest of the party, and they are less likely to fall in line behind Progressive presidential candidates compared to the rest of the party. Due to the increasing difference between the Populists and the rest of the party, many members have left for the moderation of the Liberal Party or the populism of the American Democrats. Because of this, the influence of the Populist faction has shrunk within the party and in their historical strongholds in the rural American West and Appalachia. The faction has seen a rebound in 2020 due to the leadership of Richard Ojeda.

Tides
Tides are committees within the party that support different political objectives. These include: North Star Tide: Minority rights, democratic socialism, social democracy Citizen Tide: Direct democracy, electoral reform, workplace democracy Green Tide: Environmentalism, eco-socialism, social democracy Reform Tide: Third way, social democracy, social liberalism Left Tide: Socialism, Marxism, multi-tendency Workers Tide: Trade unionism, social democracy, co-operatism