The legacy of former British Prime Minister Tony Blair is even more toxic now than the day he left office – after taking his country into the Iraq War.

An official investigation into Britain’s role in Iraq concluded that the case for going to war had been deliberately exaggerated and that Blair had given a commitment to follow President George W. Bush long before the UN weapons inspectors had completed their work in Iraq.

“I will be with you, whatever,” Blair wrote Bush in July 2002—and followed through on this promise by presenting the intelligence on WMD “with a certainty that was not justified,” according to the investigation’s findings.

Now, more than a million people have signed a petition for Blair’s recent knighthood to be revoked—a remarkable number given that the honor was only announced on New Year’s Eve.