Public outrage did not erupt overnight. It built steadily as revelations surrounding alleged anomalies in flood control projects accumulated—until Filipinos took to the streets.

The spark came when Ferdinand R. Marcos Jr. publicly acknowledged the existence of possible infrastructure anomalies, declaring that those responsible would be held accountable. Instead of calming tensions, the statement intensified scrutiny, with critics questioning how corruption on such a scale could persist under his watch.

Within weeks, the government launched the Sumbong sa Pangulo platform, urging citizens to report questionable flood control projects. The Commission on Audit soon followed with fraud audits, initially in Bulacan and later nationwide. Senate hearings exposed alleged budget insertions and political fingerprints across multiple projects, deepening public suspicion.

For many, the turning point was the perception that investigations were reactive rather than proactive—and that powerful figures appeared insulated from consequences. This frustration spilled into the streets on 21 September, when protesters gathered for the Trillion Peso March and Baha sa Luneta rallies. Demonstrators linked ballooning flood control budgets to recurring disasters, arguing that billions meant for protection had failed to prevent floods that displaced communities year after year.

The choice of date amplified the anger. Falling on the anniversary of the 1972 declaration of Martial Law, the rallies drew parallels between historical abuses of power and contemporary allegations of systemic corruption. Reports of tear gas and gunfire—denied by authorities but attested to by protesters—further fueled distrust.

Subsequent allegations by former officials and the eventual arrest of major contractors did little to quiet public anger. Instead, they reinforced the central grievance driving the protests: that accountability only comes after public pressure forces the state to act.

The Trillion Peso March, and the rallies that followed, were not merely protests against corruption. They were expressions of a deeper demand—for transparency, justice, and proof that public funds meant to protect lives are not being siphoned away behind closed doors.