It is also unclear what legal authority Trump used to order the strikes in Syria. News reports Thursday said Trump had told some congressional lawmakers he was considering a military option in Syria, but none had been sought. The U.S. strikes against ISIS, for instance, are arguably covered by the Authorization for Use of Military Force (AUMF), but the AUMF doesn’t cover strikes against the Assad regime. Still, Trump might receive retroactive congressional approval for the strikes in Syria, just as Obama did in 2011 in the ultimately ill-advised operation in Libya.  

Trump won’t be the first president to campaign against war and yet wage it, as David noted: Both Woodrow Wilson, who took the U.S. into World War I exactly a century ago this week, and George W. Bush, whose interventions in Afghanistan and Iraq are being felt even today, did just that. Whether the U.S. action in Syria will be confined to Friday’s action was unclear—even to the president. Speaking Thursday to reporters aboard Air Force One, Trump said of Assad: “He’s there, and I guess he’s running things, so I guess something should happen.”

The U.S. Strikes in Syria (The Atlantic)

I think it’s understandable (if wrong) that Trump took military action in Syria, but the way he did is once again ill-advised and reckless. I also can’t get over the fact that a billionaire just ordered military escalation in a complex, international conflict from a golf club in Florida.