The Dominican Republic Senate election expected in 2028 will determine the composition of the upper chamber of the National Congress, the Senado de la República Dominicana. The Senate has 32 members, one elected from each province plus one from the National District (Santo Domingo), using a first-past-the-post system where the candidate with the most votes wins the seat. The election winner is defined as the party or coalition that wins the most seats overall. This market focuses on which political force will emerge with the largest Senate bloc after the 2028 vote, which is scheduled to occur no later than May 2028, concurrent with presidential and Chamber of Deputies elections. The current political landscape is dominated by the Modern Revolutionary Party (PRM), which won a landslide in the 2020 elections and consolidated power in the 2024 cycle. President Luis Abinader, a PRM member, was re-elected in May 2024 with over 57% of the vote, and his party secured 24 of 32 Senate seats in that election. The main opposition is the Dominican Liberation Party (PLD), which held power for most of the 2004-2020 period but has seen its influence shrink. Other parties include the Social Christian Reformist Party (PRSC) and the People's Force (FP), the latter led by former President Leonel Fernández. Interest in the 2028 Senate election stems from the PRM's attempt to maintain its legislative majority, the opposition's efforts to rebuild after consecutive defeats, and the broader implications for governance and policy direction. Senate control affects the confirmation of judges, cabinet members, and ambassadors, as well as the passage of constitutional reforms and major legislation. The election will also test whether the PRM can sustain its coalition and whether the PLD or FP can mount a credible challenge. Recent developments include potential internal splits within the PRM, with some factions pushing for a third term for Abinader despite constitutional term limits, and the opposition's struggle to unify. The 2024 municipal and congressional elections showed the PLD and FP winning only a handful of Senate seats, indicating a steep climb ahead. Analysts will watch candidate selection, coalition negotiations, and voter turnout in the run-up to 2028.

Historical Context

The Dominican Republic's Senate has been dominated by two major parties since the 1966 restoration of democracy after the civil war: the Dominican Liberation Party (PLD) and the Social Christian Reformist Party (PRSC). The PRSC, led by Joaquín Balaguer, held power from 1966 to 1978 and again from 1986 to 1996. The PLD, founded by Juan Bosch in 1973, became the dominant force from 2004 to 2020, winning Senate majorities in 2006, 2010, 2016, and 2020 (the latter despite losing the presidency). The 2020 election was a watershed: the Modern Revolutionary Party (PRM), formed in 2014 from a merger of several opposition groups, won 18 of 32 Senate seats, breaking the PLD's 16-year hold on the chamber. The 2024 election saw the PRM expand its Senate majority to 24 seats, reflecting President Abinader's coattails and public dissatisfaction with the PLD's handling of corruption scandals and the economic slowdown. The PLD fell to 2 seats, its worst showing since 1978. The People's Force (FP), led by former President Leonel Fernández, failed to win any Senate seats despite Fernández's strong presidential run. The PRSC, once a major force, won 1 seat. This realignment mirrors a broader trend in Latin America where established parties have collapsed and new movements have risen, as seen in Peru, Chile, and Colombia. Historically, Senate control has been crucial for major reforms. The PLD used its majorities to pass constitutional amendments allowing presidential re-election (2009) and to approve tax reforms and free trade agreements. The PRM has used its majority to pass anti-corruption laws, labor reforms, and a fiscal consolidation package. The 2028 election will determine whether the PRM can maintain its dominance or whether the opposition can regain ground, potentially leading to a divided government if a different party wins the presidency.