Colombia’s presidential election, scheduled for 29 May, has emerged as a critical juncture for hemispheric stability. The two leading candidates, populist leftist Gustavo Petro and conservative Federico Gutiérrez, offer starkly divergent paths for the Andean nation’s foreign policy, particularly regarding its long-standing alliance with the United States. The UK Treasury is now monitoring potential economic contagion, as Colombia’s financial markets have already shown signs of volatility.
Petro, a former M-19 guerrilla and former mayor of Bogotá, currently leads in opinion polls. His platform includes renegotiating trade agreements with Washington, suspending joint military operations, and diversifying Colombia’s diplomatic and economic relations toward China and Russia. Gutiérrez, a former mayor of Medellín, promises continuity: free-market policies, strong security cooperation with the US, and maintaining Colombia’s role as a regional counterweight to authoritarian regimes.
The outcome has direct implications for the United States. Colombia is a major non-NATO ally, the third-largest recipient of US foreign aid after Israel and Egypt, and a key partner in counter-narcotics operations. A Petro administration could end US access to military bases, halt joint coca eradication programmes, and pivot toward Beijing on infrastructure and technology deals. Analysts estimate that up to $500 million in annual US assistance could be at risk, alongside bilateral trade valued at $24 billion.
UK Treasury officials are concerned about secondary effects. British banks hold approximately £8 billion in exposure to Colombian debt, and UK insurers underwrite a significant portion of Colombia’s infrastructure projects. A victory for Petro could trigger capital flight, peso devaluation, and a downgrade of Colombia’s credit rating, currently investment-grade at BBB- by S&P. The Treasury’s financial stability unit has been running stress tests on UK institutions with Colombian assets, assessing scenarios of a 30 per cent currency depreciation and a spike in non-performing loans.
There are also diplomatic ripple effects. The UK, as a permanent member of the UN Security Council, relies on Colombia as a stabilising force on the continent. Bogotá has been a vocal critic of Venezuela’s Maduro regime and a partner in the Lima Group. A Petro victory would almost certainly lead to a thaw in relations with Caracas, potentially undermining international pressure on the dictatorship. The UK’s Foreign, Commonwealth and Development Office has already flagged that a shift in Colombia’s stance would complicate efforts to monitor human rights abuses in Venezuela and uphold sanctions.
Furthermore, a leftward turn in Colombia would strengthen the hand of similar movements elsewhere in Latin America. Chile’s leftist President Gabriel Boric, President López Obrador in Mexico, and former President Lula in Brazil have all signalled sympathy for Petro’s agenda. This would create a regional bloc more sceptical of US influence and more open to Chinese investment, challenging the UK’s strategy of using soft power and trade deals to maintain influence in the region.
The election itself is likely to be tightly contested, with a second round possible in June if no candidate secures a majority. Voter turnout will be crucial, especially among the 40 per cent of Colombians who live in rural or conflict-affected areas. Allegations of disinformation and campaign financing irregularities have already emerged, though international observers have yet to report wide spread fraud.
In the markets, the Colombian peso has weakened 8 per cent against the dollar since the start of the year, and the benchmark Colcap stock index has fallen 12 per cent. Investors are pricing in a Petro victory, with yields on 10-year government bonds rising to 8.4 per cent from 6.9 per cent in January. The UK Treasury’s assessment suggests that while a Petro win would not trigger a systemic crisis for British banks, individual lenders could face significant losses if exposure is concentrated in specific sectors such as mining or energy.
For the moment, the Treasury’s stance is one of quiet vigilance. But if the polls prove accurate, the US and its allies, including the UK, may need to recalibrate their Latin American strategies swiftly. Colombia, once a reliable partner, could become a bellwether for a region in flux.








