2003-2007: Gobierno de coalición UPN-CDN
At the elections that were held in May 2003, voter turnout was 70.70% of the total census figure of 464,807 people, with an abstention rate of 29.30%. The results of these elections were as follows: UPN, 23 seats (127,460 votes); PSN/PSOE, 11 seats (65,003); IUN/NEB, 4 seats (26,962 votes); Aralar, 4 seats (24,068 votes); CDN, 4 seats (23,516 votes); EA/EAJ-PNV, 4 seats (22,824 votes).

2003-2007 coalition government
UPN and CDN joined forces to form a coalition government with a sufficient majority, led by the UPN candidate Miguel Sanz Sesma. The regional cabinet was made up of the following members:
- President: Miguel Sanz Sesma (Corella, 16-9-1952). UPN
- Vice President, Economics and Finance: Francisco Iribarren Fentanes (Aoiz, 28-11-1960). UPN
- President’s Office, Justice and Home Affairs: Javier Caballero Martínez (Pamplona, 13-9-1961). UPN
- Local Government and Government Spokesperson: Alberto Catalán Higueras (7-11-1962). UPN
- Environment, Territorial Organisation and Housing: José Andrés Burguete Torres (Lumbier, 21-10-1964). CDN
- Education: Luis Campoy Zueco (Ablitas, 31-12-1938). UPN
- Culture and Tourism: Juan Ramón Corpas Mauleón (Estella, 16-12-1952). Independent
- Health: María Kutz Peironcely (San Sebastián, 13-7-1954). Independent
- Social Welfare, Sport and Youth: Reyes Berruezo Albéniz (Pamplona, 10-1-1951). Independent
- Public Infrastructure, Transport and Communications: José Ignacio Palacios Zuasti (Pamplona, 14-8-1952). UPN
- Agriculture, Livestock Farming and Food: José Javier Echarte Echarte (Pamplona, 17-3-1954). CDN
- Industry and Technology, Trade, Tourism and Employment: José Javier Armendáriz Quel (Pamplona, 9-1-1962).
NB: In February 2004,
Reyes Berruezo was replaced as Regional Minister for Social Welfare by the then Regional Minister for Public Infrastructure,
José Ignacio Palacios, whose portfolio was given to
Álvaro Miranda Somavilla. In June 2006, José Ignacio Palacios was replaced as Regional Minister for Social Welfare by
María Isabel García Malo.