Óscar Puente turns to a Forges cartoon after his resignation denouncing the classic “all politicians are the same”

The replacement of a minister after a resignation corresponds to the Prime Minister and the King: the Prime Minister proposes the dismissal and the appointment of the replacement, and the King formalizes them through royal decrees. No investiture vote for the new minister or approval by Congress is required. The procedure allows the vacancy to be immediately filled or the department to be temporarily maintained under the responsibility of another Government member.

1. Submission of resignation and formalization of dismissal

The minister communicates to the Prime Minister their decision to resign. It is important to distinguish between the political announcement and its legal effect: a public appearance, a letter, or a communication on social media do not replace the formal act of dismissal.

Article 100 of the Constitution assigns to the King the appointment and dismissal of Government members, at the proposal of its Prime Minister. Therefore, it is the Prime Minister's responsibility to submit the dismissal proposal and the King's to formalize it. This is not a discretionary decision of the monarch regarding the minister's continuity.

The dismissal is articulated through a royal decree, signed by the King and countersigned by the Prime Minister, which is published in the Official State Gazette. To determine when it takes effect, one must refer to what the decree stipulates.

2. Selection and appointment of the replacement

The Prime Minister chooses the person who will assume the ministry and proposes their appointment to the King. They may select someone already part of the Government or bring in an outsider. It is not mandatory to be a deputy or senator to be a minister.

The chosen person must meet the legal requirements to be part of the Government, including having Spanish nationality, being of legal age, and enjoying active and passive suffrage rights. They must also meet the suitability conditions required for senior officials and not be disqualified from holding public employment or office.

The appointment is formalized through another royal decree, also signed by the King, countersigned by the Prime Minister, and published in the Official State Gazette. The dismissal and appointment can be published on the same day, avoiding an interruption in the political leadership of the department.

3. Oath or promise and taking office

The incorporation of the new minister includes the act of oath or promise before the King. Subsequently, the handover of the portfolio usually takes place at the ministry's headquarters, where the outgoing official symbolically transfers responsibility to the incoming one.

It is advisable to separate both levels: the legal handover rests on the formal appointment and its effects, while the portfolio handover facilitates institutional continuity and makes the change of responsibility visible.

4. Temporary coverage of the vacancy

If a replacement is not immediately appointed, a temporary substitution can be established. In case of vacancy, the Government Law provides that another Government member assumes the management of the department's affairs through a royal decree of the Prime Minister.

This solution allows ministerial activity to continue while the definitive appointment is decided. It does not necessarily imply merging ministries or modifying their structure.

5. Role of Parliament and Government continuity

Congress does not confirm the new minister through a specific vote. It may oversee their performance through questions, interpellations, or appearances, but this oversight is different from the appointment.

Finally, the resignation of a minister does not cause the dismissal of the entire Government, nor does it require new elections or a new investiture. The Prime Minister can carry out the individual replacement and maintain the rest of the team.

A Minister of Transport has two main responsibilities: to lead their department, like any minister, and to propose and execute the state policy on transport, infrastructure, and mobility. They do not personally decide all sector matters: many competencies belong to management bodies and public entities, and others require agreements of the Council of Ministers.

1. General competencies as a minister

Article 4 of the Law 50/1997, of the Government establishes that ministers have "competence and responsibility in the specific sphere of their action." This includes:

• Developing the Government's action in their department, following the agreements of the Council of Ministers and the Prime Minister's guidelines.
• Exercising regulatory power, that is, issuing provisions in the ministry's own matters within the legal framework.
• Exercising the powers granted by laws and organizational rules.
• Countersigning, when appropriate, the King's acts related to their competencies.

Presidential direction does not eliminate the minister's direct responsibility for their management. Additionally, Law 40/2015 contemplates efficacy control of entities attached to the department: evaluating their objectives and resource use, without replacing the corresponding economic-financial controls.

2. Specific competencies in Transport

Article 1 of the Royal Decree 253/2024, which develops the structure of the Ministry of Transport and Sustainable Mobility, assigns the department the following matters:

• State infrastructures: proposing and executing policies on land, air, and maritime transport infrastructures of state competence, and planning and programming their investments.
• Transport services: controlling, ordering, and administratively regulating the corresponding services. This covers roads, railways, aviation, and maritime transport, through the competent bodies.
• Sustainable mobility: promoting it in its social, economic, and environmental dimensions, including active mobility. It includes promoting connections between different transport modes and cooperating with territorial administrations in urban mobility plans.
• Other matters: normative regulation of postal services and management of state services of astronomy, geodesy, geophysics, and cartography.

3. How these competencies are exercised

The minister directs the department mainly through the Secretariat of State for Transport and Sustainable Mobility and the Undersecretariat. The Secretariat of State assumes, under their direction, functions of planning, investment programming, infrastructure execution, and coordination of attached bodies and entities.

Therefore, political leadership does not equate to personal management of each action. Competencies are distributed among the ministry's bodies and corresponding entities. The Government Law allows delegating certain powers to secretaries of state, undersecretaries, and other management bodies, respecting legal limits.

In crises and emergencies, Royal Decree 690/2025 strengthened coordination, prevention, and victim assistance within the Secretariat of State. Direct management remains with the sectorally competent centers and entities.

4. Limits of decision-making capacity

The minister cannot alone approve decisions reserved for the Council of Ministers. These include draft laws, royal decree-laws, and regulations whose approval corresponds to the Government. They can promote proposals within their scope but must respect the legally established body and procedure.

They also do not concentrate all competencies over any transport or infrastructure existing in Spain: the royal decree expressly delimits the state scope and requires coordination with other departments. In short, their role is to direct, regulate, and promote the state's sector policy, respecting the distribution of responsibilities.

Before becoming a minister, Óscar Puente developed his career mainly in Valladolid: he was a local PSOE leader, opposition councilor, and mayor for eight years. His national projection came as spokesperson of the Socialist Federal Executive between 2017 and 2021 and later as a deputy for Valladolid in 2023, a few months before joining the Government.

Early steps: membership and local responsibilities

Born in Valladolid in 1968 and a Law graduate, Puente worked as a lawyer between 1995 and 2015. Therefore, during his early municipal activity years, he combined politics with his profession, which he left upon becoming Mayor. His affiliation to the PSOE dated back to 1990, well before holding public office. These backgrounds appear in his official biography.

In 2004, he assumed the Deputy Secretary-General of the Provincial Executive of the PSOE of Valladolid. In 2007, he obtained his first councilor seat and, since 2008, presided over and acted as spokesperson of the socialist municipal group, replacing Soraya Rodríguez. In 2009, he was elected secretary general of the party's Municipal Executive, a responsibility he held until 2021. Thus, he gathered internal leadership and institutional representation functions (Transport biography).

Eight years in opposition and two terms as mayor

Between 2007 and 2015, his institutional activity was in opposition to the municipal government of Javier León de la Riva, from the PP. In 2010, he secured socialist support to be a mayoral candidate. That stage preceded his arrival at city government, as reconstructed by Demócrata.

The change came in June 2015. Although the PP had been the most voted force, Puente gathered the necessary support from other candidacies to become mayor, ending two decades of popular governments. In 2019, the PSOE won the municipal elections and Puente renewed the Mayorship. He remained at the head of the City Council until June 2023 (Demócrata).

His municipal experience also included responsibilities outside Valladolid. He presided over the Spanish Network of Healthy Cities of the Spanish Federation of Municipalities and Provinces —FEMP— between November 2015 and December 2019. Afterwards, he was a member of its Governing Board from September 2019 to May 2023, and represented the federation in the Urban Initiatives Network from October 2020 to May 2023 (Transport biography).

The PSOE federal leadership

While mayor, Puente supported Pedro Sánchez in the 2017 socialist primaries. After Sánchez's victory, he became spokesperson of the PSOE Federal Executive Commission, a position he held between June 2017 and October 2021. It was his first sustained national-level responsibility, compatible with managing the City Council (Demócrata).

2023: from City Council to Congress and Government

In the May 2023 municipal elections, the socialist candidacy was again the most voted in Valladolid. However, the agreement between PP and Vox allowed Jesús Julio Carnero to access the Mayorship. Puente thus closed his eight years as mayor (Demócrata).

His next step was to lead the socialist candidacy for Valladolid in the general elections of July 23, 2023, in which he obtained a seat. In September, he was the PSOE's rebuttal during Alberto Núñez Feijóo's investiture debate. Finally, in November, he was appointed Minister of Transport and Sustainable Mobility: thus culminating a career that had passed through municipal opposition, the Mayorship, federal leadership, and Congress (Demócrata).