No, Trump Didn't Defeat ISIS

Article/Op-Ed in CNN
Oct. 18, 2017

Peter Bergen wrote for CNN about President Trump and ISIS: 

On Tuesday, US-backed forces announced that Raqqa, the de facto capital of ISIS in Syria, had fallen.
President Donald Trump quickly took a victory lap during an interview the same day, stating that ISIS hadn't been defeated earlier because "you didn't have Trump as your president."
Is this claim true? Not really, according to US military officials.
In August 2016, Lt. Gen. Sean MacFarland, who was the ground commander for the fight against ISIS, said the US-led coalition had killed an estimated 45,000 ISIS fighters.