Colombia Marks President Petro’s Final May Day

May 1, 2026 will not be just another march in Colombia. It is the final Labor Day of Gustavo Petro’s government and comes in the final stretch ahead of the presidential elections at the end of the month. That coincidence turns the day into more than a labor commemoration: it will also be a show of political strength in the streets.

The president arrives at this date with the opportunity to close his cycle in one of the settings he has most frequently used during his term: public mobilization. In a country marked by polarization, the day will serve to gauge support, send messages, and set the tone of the campaign in its decisive days.

For this day, Gustavo Petro once again reiterated the need that, in his view, Colombia has to convene a national constituent assembly, a legal mechanism to amend the constitution that the president has been invoking for some time, following Congress’s rejection of most of his social reform proposals.

In fact, today marked the launch of the so-called “Constituent Assembly committees,” which will serve as locations for collecting signatures from citizens—a total of 2.5 million validated signatures are needed—to be submitted to Congress on July 20, when the new Parliament, elected last March, is convened.

Related: Colombia’s May 1: Petro Lays Groundwork for Constituent Assembly.

Colombia marks President Petro’s final May Day

Since 2023, May Day mobilizations in Colombia have taken on a more overtly political tone. The president has actively participated in the marches and turned his appearances into speeches with strong ideological content. In them, he has defended his reform agenda—labor, pension, and health—and has raised the need to transform the foundations of the country’s economic and social model.

Those appearances have also included room for confrontation. Gustavo Petro has used the visibility of the day to question business sectors, the political opposition, and institutions that, in his view, have blocked his initiatives. The public square, historically associated with social protest, thus became a direct channel between the president and his base.

At the same time, the government has sought to reinforce the idea that its political project is aligned with the historical demands of the labor movement. The official narrative has insisted that this is Colombia’s first left-wing government and, therefore, the first to place labor demands at the center of the agenda. That approach has reshaped the tone of the day, partially moving it away from its exclusively union character to integrate it into a broader political strategy.

The 2026 edition carries special weight. It not only marks the symbolic close of a government cycle, but also takes place in an immediate electoral context. Just weeks before the presidential elections, the mobilization takes on an additional dimension: that of a political barometer and a show of strength.

For the ruling coalition, this day represents an opportunity to show popular support in the streets at a key moment. Turnout capacity will be read as an indicator of the mood of its base and the reach of its political project after nearly four years in office. In that sense, May Day ceases to be only a labor commemoration and becomes an indirect campaign event.

It is also a space to take stock. The president is expected to use his speech to highlight the achievements of his administration, defend the reforms he managed to pass, and justify those that remain pending. The tone of the speech will be decisive: it could lean toward celebrating what has been achieved or toward warning of what, in his view, is at risk if there is a change in political direction.

The controversial National Constituent Assembly

Although the ruling coalition’s candidate in the May 31 election, fellow leftist Ivan Cepeda, downplayed Petro’s proposal by adding that a constituent assembly was not a “priority” of his potential government, the current head of state again reiterated today the need to use this legal instrument to advance social legislation.

“We do not want to change the constitution; we want to add two chapters: the social reforms that the current Congress did not approve, and reform of the political system to eradicate corruption. On May 1, take to the streets of Colombia for social reforms, against corruption, and for dignified work and pensions,” the president said in a public statement that he posted on his account on the social media platform X.

No queremos cambiar la constitución, queremos agregarle dos capítulos:

Las reformas sociales que el actual Congreso no aprobó, y la reforma al sistema político para erradicar la corrupción.

El 1 de Mayo a las calles de Colombia por las Reformas Sociales, contra la corrupción y… pic.twitter.com/AifzYInZRv

— Gustavo Petro (@petrogustavo) May 1, 2026

Thus, despite the lack of support in Congress, during the final three months of his term, Gustavo Petro will continue to push for this measure, which will undoubtedly take center stage in his speech this afternoon in Medellin, where he will be joined by thousands of supporters, just as has been the case in recent years in Bogota.

An election-driven day for Colombia’s direction

The electoral context redefines the meaning of this year’s mobilization. Unlike previous years, when the emphasis was on advancing ongoing reforms, the focus is now on the immediate future. Elections at the end of the month shape the message and amplify its impact.

For sectors close to the government, May Day is an opportunity to reinforce the continuity of the leftist political project. The streets become a space of legitimation, where the aim is to convey the idea that the transformations that have begun must be consolidated. In this context, the mobilization can function as a symbolic prelude to the electoral contest.

For the opposition, by contrast, the day is viewed with suspicion. Some sectors criticize the political use of a historic date of the labor movement and question the dilution of its reivindicative nature—which, moreover, they have never been part of—in favor of partisan interests. This tension reflects the polarized climate that has marked Colombian politics in recent years.

Beyond political interpretations, May Day remains a space for social expression. Unions, informal workers, collectives, and citizens participate with their own agendas that do not always align with that of the government. This diversity keeps the essence of the day alive, even amid its growing polarization.

International Workers’ Day has its origins in the labor struggles of the late 19th century, especially in the United States, where in 1886 a series of protests in Chicago demanded the eight-hour workday. The events known as the Haymarket affair marked a milestone in the history of the labor movement and led to the establishment of May 1 as a day of worldwide reivindication.

In Colombia, the commemoration began to take shape in the early 20th century, driven by unions and workers’ organizations seeking to make their demands visible in a country with deep social inequalities. Over time, the day became established as a space for mobilization and political expression, adapting to the country’s different historical contexts. Today, more than a century later, it remains a reflection of the tensions, aspirations, and debates that run through Colombian society.