|Progressive Social Democratic Party of the Republic of New England|
|Preceded by||Socialist Party of the United States|
|Ideology||Social democracy, nationalism, Democratic Socialism, liberalism, progressivism|
|International affiliation||Socialist International|
|Official colours||red, green|
There has never been a Prime Minister of the RNE that hasn't been a member of the PSDP. Ted Kennedy, who was Prime Minister from 1986 until his death in 2009, was a founding member of the PSDP. The current Prime Minister is John Kerry, also of the PSDP.
It is seen as a center-left party, but significantly further left than the Socialist Party of the United States, as a result of the left-wing politics of the Republic of New England.
Many ideologies are found in the PSDP. From market liberalism to progressivism to social democracy to socialism, the PSDP is seen as a big tent party for anyone left-leaning. Among the non-negotiable core facets of the PSDP, however, are its stance on civil rights. Any member of the PSDP must pledge to support equal rights for all people, regardless of race, gender, sexual orientation or religion, one of the few parties in the world that takes such a broad stance on behalf of all of it's members in civil and human rights.