Magyar Szocialista Párt (MSZP – Hungarian Socialist Party)
MSZP is a centre‑left social‑democratic party and successor to the…
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Partido Socialista Obrero Español (PSOE)
PSOE is a mainstream centre‑left, social‑democratic and pro‑EU party that…
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Socialni demokrati (SD – Social Democrats)
Socialni demokrati is a mainstream centre‑left, pro‑EU social‑democratic party with…
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Partido Socialista (PS)
The Socialist Party is a centre‑left, pro‑European formation advocating a…
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Esquerra Republicana de Catalunya (ERC)
ERC is a left‑of‑centre, pro‑independence Catalan republican party that combines…
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SMER – sociálna demokracia (SMER‑SD – Direction – Social Democracy)
SMER‑SD is a left‑of‑centre economic party fused with social conservatism,…
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Lewica (The Left)
Lewica is a centre‑left, social‑democratic and progressive alliance built around…
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Partidul Social Democrat (PSD – Social Democratic Party)
PSD is a major centre‑left party that combines social‑democratic rhetoric…
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GroenLinks–Partij van de Arbeid (GroenLinks–PvdA, GL‑PvdA)
GroenLinks–PvdA is a centre‑left alliance combining green and social‑democratic traditions,…
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Partit Laburista (PL – Labour Party)
Labour is a centre‑left, social‑democratic and pro‑EU party that has…
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The Progressives (Progresīvie, P)
The Progressives (Progresīvie, PRO) are a centre‑left, social‑democratic and green…
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Partito Democratico (PD)
The Partito Democratico (PD) is a centre‑left, social‑democratic party that…
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Lithuanian Social Democratic Party (Lietuvos socialdemokratų partija, LSDP)
The Lithuanian Social Democratic Party (LSDP) is a centre‑left, social‑democratic…
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Lëtzebuerger Sozialistesche Arbechterpartei (LSAP)
The Luxembourg Socialist Workers Party (Lëtzebuerger Sozialistesche Arbechterpartei, LSAP) is…
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Κίνημα Αλλαγής / Kinima Allagis (PASOK-KINAL / Movement for Change)
PASOK-KINAL is a centre-left social-democratic alliance formed around the historic…
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Labour Party (Páirtí an Lucht Oibre)
Labour is a social‑democratic, pro‑EU party that historically served as…
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Sozialdemokratische Partei Deutschlands (SPD)
The SPD is a centre‑left social‑democratic party prioritising welfare, workers’…
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Parti Socialiste (PS)
The Parti Socialiste is France’s principal social-democratic party, pro-European and…
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Suomen Sosialidemokraattinen Puolue (SDP)
The Social Democratic Party is a centre-left, pro-EU party anchored…
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Sotsiaaldemokraatlik Erakond (Social Democratic Party / SDE)
SDE is Estonia’s main centre‑left, social‑democratic party, advocating a stronger…