Luxembourg Socialist Worker’s Party (LSAP). Traditionally Luxembourg’s second party, the LSAP is a centre-left, social democratic party, which retains a more working class identity than many of its fellow Party of European Socialist members.
The LSAP is dominant in the South of Luxembourg, in the so-called Red Lands, traditionally home to the country’s former iron and steel industries. While these industries have declined, the Red Lands remain the heart of Luxembourg’s industrial complex.
Traditionally Luxembourg’s second largest party, the LSAP is the only party to have ever beaten the CSV in the popular vote, in 1964 by 0.2% of the vote, though the effects of the Luxembourg electoral system meant that the CSV actually won one more seat than the LSAP.
The LSAP has never held the premiership of Luxembourg, but it has formed the largest party in government twice, between 1974 and 1979 and from 2013 onwards when it has formed governments with the Democratic Party (who took the premiership both times).
As Luxembourg’s second largest party, however, the LSAP is the most frequent coalition partner of the CSV and since WWII has only experienced four parliamentary terms in the opposition, 1959-1964, 1969-1974, 1979-1984 and 1999-2004.
The party is relatively moderate and pragmatic, and its programme consists of fairly typical social democratic stuff: moderately higher taxes on the rich, lowering the voting age to 16, more referendums, separation of church and state, gender quotas for electoral lists, and caps on rent increases.
The LSAP is, like all major parties in Luxembourg, generally very pro-European.
The Socialists have been in decline in recent decades. Once a party capable of winning between 30-35% of the vote, the party experienced its worst election result in any national election ever in 2013 when it fell to just 20.3%. While the party maintains a presence in government this represents an existential threat for the LSAP.
The LSAP is a member of the Socialists and Democrats in the European Parliament. The party is actually the least loyal member of the S&D group, with their single MEP only voting with the group 85.5% of the time.