In a flash, President Trump’s missile strike on Syria conveyed America’s moral outrage over the slaughter of innocents and delivered a lethal warning to two-bit tyrants everywhere.

The attack did something else, too. It punched a giant hole in the battered legacy of Barack Obama.

The former president talked early and often about Syria, but wasted six years and countless lives with hand-wringing dithering. He failed to enforce his red line about Bashar al-Assad’s use of chemical weapons, kicking the job to Trump, who acted just two days after Assad again unleashed fiendish weapons on his own people.

The contrast on Syria was one of several events that made Obama a big loser last week. Another one was the growing evidence that his team spied on Trump’s for political reasons.