Al Qaeda is a US asset in Syria:

"In his first interview with an American journalist, Jolani told FRONTLINE correspondent Martin Smith that his role in fighting Assad and ISIS, and in controlling an area with millions of displaced Syrians who could potentially become refugees, reflected common interests with the United States and the West."

"James Jeffrey, who served as a U.S. ambassador under both Republican and Democrat administrations and most recently as special representative for Syria engagement and special envoy to the global coalition to defeat ISIS during the Trump administration, told Smith that Jolani’s organization was “an asset” to America’s strategy in Idlib."

Excerpts from a recent PBS interview with leader of Al Qaeda offshoot in Idlib, Mohammed Al Jolani. Analysis below by Syrian journalist, Kevork Almassian of Syriana Analysis: 

https://www.youtube.com/watch?v=vLtcM9nYY2k