Colombian President Gustavo Petro’s proposal to convene a National Constituent Assembly in 2026 is facing mounting resistance, as political opposition, institutional constraints, and shifting alliances slow momentum behind one of his most ambitious constitutional initiatives. The proposal, announced after Congress blocked several of his key social reforms, aims to modify rather than replace the 1991 Constitution, focusing on areas such as healthcare, pensions, justice reform, environmental policy, and implementation of the 2016 Peace Agreement.
Petro argues that Congress has become an obstacle to fulfilling the social promises embedded in the 1991 constitutional framework, particularly those related to social justice, anti-corruption measures, and peacebuilding commitments. His plan seeks to introduce targeted reforms through a Constituent Assembly rather than a full constitutional rewrite. The formal proposal is expected to be presented to Congress by July 20, 2026, marking a key political deadline for his administration.
The government has outlined eight main areas of reform, including the strengthening of fundamental rights, judicial restructuring, political financing rules, environmental protections, territorial autonomy, and mechanisms to enforce social guarantees. Central to the proposal is the idea that essential services such as healthcare, pensions, and access to water should be recognized as enforceable constitutional rights. It also calls for changes to the political system aimed at reducing corruption, including restrictions on private financing in electoral campaigns.
Judicial reform is another major component, with proposals to create a more citizen-focused justice system emphasizing restorative principles and guarantees of non-repetition. Environmental provisions would elevate climate action and decarbonization to constitutional status, while territorial reforms aim to strengthen local governance and reorganize administrative structures around natural resources such as water.
Despite these ambitions, the proposal faces significant constitutional and political barriers. Under Colombia’s legal framework, a Constituent Assembly cannot be convened by presidential decree. It requires approval from both chambers of Congress, review by the Constitutional Court, and a national referendum in which at least one third of registered voters must support the measure. Given the current composition of Congress, Petro’s coalition lacks the majority needed to advance the initiative, making legislative approval highly uncertain.
Opposition leaders have strongly criticized the proposal, warning that it could destabilize democratic institutions. Critics argue that Colombia’s 1991 Constitution already provides sufficient mechanisms for reform and that Petro’s initiative risks undermining institutional balance. Former political figures and congressional leaders have described the plan as unnecessary and potentially divisive, urging the government to pursue reforms through ordinary legislative processes instead.
Opposition voices have also questioned the political timing of the initiative, suggesting it reflects frustration over stalled reforms rather than a genuine constitutional necessity. Some have characterized the proposal as an attempt to bypass Congress, while others insist it distracts from the government’s legislative difficulties.
Within Petro’s own political coalition, positions have shown signs of divergence. Senator and presidential hopeful Iván Cepeda initially expressed skepticism, arguing that the existing Constitution still has untapped potential and should be fully implemented before considering structural changes. He later softened his position, suggesting that any constitutional process should emerge from a broad national consensus rather than a unilateral political initiative.
As of May 2026, the proposal remains at an early stage, with no approved law to convene an assembly and an ongoing campaign to collect signatures in support of the initiative. The coming months, particularly the July 20 deadline, are expected to determine whether Petro’s constitutional project advances into formal political and legal processes or stalls amid continued institutional resistance.
