The president heads the executive separately from Congress.
Why this matters
The president heads the executive separately from Congress. Since July 2026, national legislative power is again exercised through a Chamber of Deputies and a Senate.
COUNTRY PERSPECTIVE
Peru, in context.
What changes when you read political ideas in Peru? This page gives the minimum context you need before comparing labels across countries.
Three things to know first
The shortest useful version of how power works here.
The Chamber of Deputies initiates and approves legislation that is then reviewed by the Senate, while the Senate also has constitutionally defined appointment and review functions.
Why this matters
The Chamber of Deputies initiates and approves legislation that is then reviewed by the Senate, while the Senate also has constitutionally defined appointment and review functions. The executive and legislature retain separate electoral mandates.
The Constitutional Court reviews constitutional disputes.
Why this matters
The Constitutional Court reviews constitutional disputes. Peru is unitary but has elected regional and municipal governments with decentralised responsibilities.
What familiar labels mean here
Some political words change meaning across countries. These are the distinctions worth knowing first.
Peruvian parties and electoral vehicles are often organisationally fluid, so a party name alone may reveal less about ideology than its candidates, programme, alliances and regional base.
Debates over presidential power, congressional accountability, decentralisation, informality, public security and the political role of anti-corruption institutions frequently cut across a simple left–right line.
The system in 30 seconds
Enough structure to make the rest of the page intelligible.
- System
- Unitary presidential republic
- Head of state and government
- President
- Legislature
- Bicameral Congress: Chamber of Deputies and Senate
- Legislative structure
- Bicameralism restored in 2026 after more than three decades of unicameralism
- Constitution
- Political Constitution of 1993, as amended
Turning points worth knowing
Only the events that help explain how today’s system got here.
Return to constitutional government
A new Constitution and elections marked the transition from military government back to civilian rule.
Institutional rupture and new Constitution
President Alberto Fujimori dissolved Congress in 1992; a constituent process produced the 1993 Constitution and a unicameral legislature.
Democratic transition
The collapse of the Fujimori government led to an interim administration and new elections.
Bicameral Congress restored
A constitutional reform took effect with a new Congress composed of a Chamber of Deputies and Senate, ending more than three decades of unicameralism.
Sources and update status
- Constitution and Standing RulesCongress of the Republic of Peru · 2026-09-19
- Bicameral Congress for the 2026 electionsNational Office of Electoral Processes · 2026-09-19
Current-data work still open: Current office holders · Current Senate and Chamber composition and party profiles · 2026 election turnout and full results review · Democracy, institutional-stability and rights dimensions · Long-term indicator trends