Sri Lanka's political landscape has rarely witnessed a crisis as dramatic and constitutionally significant as the conflict between President Maithripala Sirisena and Prime Minister Ranil Wickremesinghe. What began as a fragile coalition government built on promises of good governance and democratic reform ultimately unraveled into one of the most turbulent political episodes in the island nation's modern history. The fallout from this bitter rivalry culminated in the shocking appointment of former President Mahinda Rajapaksa as Prime Minister — a move that sent shockwaves through Sri Lanka and drew intense scrutiny from the international community.
The Unlikely Alliance That Was Always Destined to Fracture
When Maithripala Sirisena defeated Mahinda Rajapaksa in the January 2015 presidential election, he did so with the critical support of Ranil Wickremesinghe and the United National Party (UNP). The two leaders formed a national unity government, combining Sirisena's Sri Lanka Freedom Party (SLFP) with Wickremesinghe's UNP in what was marketed as a "yahapalanaya" or good governance administration. However, the ideological differences between the two parties, combined with personal ambitions and growing mistrust, made this coalition inherently unstable from the very beginning.
Over the following years, tensions simmered beneath the surface. Sirisena grew increasingly frustrated with what he perceived as Wickremesinghe's dominance over economic policy and cabinet affairs. The President felt marginalized within his own government, a sentiment that deepened as high-profile corruption investigations — including the Central Bank bond scam — began to cast shadows over the administration and, by association, over Sirisena himself despite his efforts to distance from the controversy.
Diplomatic Engagements and the Broader Political Context
Even as domestic tensions escalated, Sri Lankan officials continued their international engagements. Ministerial delegations traveled to countries including Australia and Poland for conferences on critical topics such as Science and Technology. The Commonwealth Institute facilitated participation in a Sydney conference with Australian government support — meetings that held particular significance given that a substantial number of Sri Lankan technical officers had trained in Australia under the Colombo Plan. These international activities underscored the functioning diplomatic machinery of the state, even as the political core back home was fracturing at an accelerating pace.
Such overseas engagements also highlighted the contrast between Sri Lanka's outward-facing diplomatic posture and the internal dysfunction consuming its leadership. While ministers networked with global counterparts on development and technology cooperation, the presidency and prime ministership were locked in an increasingly personal and politically dangerous confrontation.
The Breaking Point: Sirisena's Dramatic Move
By October 2018, the Sirisena-Ranil relationship had deteriorated beyond repair. President Sirisena made the extraordinary decision to sack Prime Minister Wickremesinghe and replace him with none other than Mahinda Rajapaksa — the very man Sirisena had defeated in 2015 and had once accused of authoritarian governance. The appointment stunned the nation and sparked an immediate constitutional crisis.
Sirisena justified the move by citing an irreparable breakdown of trust and alleging that his life had been threatened in a plot he linked to individuals within the government. Wickremesinghe, however, refused to accept his dismissal, arguing that the President had no constitutional authority to remove him without a parliamentary vote of no confidence. He continued to occupy Temple Trees, the official Prime Ministerial residence, setting the stage for an unprecedented standoff.
The Constitutional Crisis Unfolds
What followed was a period of profound constitutional uncertainty. Sri Lanka effectively had two men claiming the office of Prime Minister simultaneously. Sirisena then suspended Parliament in an attempt to prevent a no-confidence vote against Rajapaksa, a move widely condemned by legal scholars, opposition parties, and international observers as an assault on democratic norms.
The Supreme Court of Sri Lanka intervened, ruling the suspension of Parliament unconstitutional. When Parliament finally sat, it passed multiple votes of no confidence against Rajapaksa, who was unable to demonstrate a working majority. The episode exposed serious vulnerabilities in Sri Lanka's constitutional framework and raised urgent questions about the limits of presidential power.
Rajapaksa Steps Down, Democracy Partially Restored
Faced with insurmountable parliamentary opposition and mounting legal pressure, Mahinda Rajapaksa resigned as Prime Minister in December 2018 after just 51 days in office. Ranil Wickremesinghe was subsequently reinstated, though the damage to the unity government and to Sri Lanka's democratic institutions was already done.
Legacy of the Crisis
The Sirisena-Ranil conflict left lasting scars on Sri Lankan politics. It deepened public cynicism about political leadership, weakened the unity government beyond recovery, and paradoxically helped rehabilitate Mahinda Rajapaksa's political image among his supporters. The crisis remains a defining chapter in Sri Lanka's democratic journey — a cautionary tale about coalition politics, personal ambition, and the fragility of institutional safeguards when leaders prioritize power over principle.