BOSTON — Days after a violent pro-Palestine riot left four Boston cops hospitalized — one needing reconstructive surgery — and a police cruiser in flames, Mayor Michelle Wu is still smiling behind a podium insisting Boston is “the safest major city in America.”

At a press event Friday, Wu doubled down on her favorite talking point — “safest major city” — even as her own police officers recover from broken bones and chaos continues spilling into downtown streets.

“We are the safest major city by the numbers,” Wu told reporters, brushing off questions about Tuesday’s riot at the Boston Common that saw protesters block emergency vehicles, scream “BPD is KKK,” and allegedly assault officers.

Prosecutors have since charged 13 demonstrators — some under a promotion of anarchy statute — after investigators found they advertised the rally using a picture of a burning police cruiser and a Hamas quote.

Even the head of Boston’s police union admitted the department “dropped the ball” in preparing for the melee — a stunning confession as the city reels from back-to-back nights of lawlessness, from a 100-person street takeover to officers bloodied at the Common.

Wu, meanwhile, is blaming Trump. She told the Boston Herald that federal judges have blocked the president’s efforts to deploy the National Guard to “dangerous” cities — declaring, “The president does not have the power to declare war on American cities.”

But as one officer undergoes surgery for a shattered nose, critics say the mayor’s words ring hollow.

Boston’s “safest city” myth may look good in speeches — but the footage of chaos in the Common tells a different story.