MSNBC Live with José Díaz-Balart 08/04/15

US to provide air cover for American-trained rebels in Syria

The U.S. may be wading deeper into the war in Syria with the new decision to provide air cover for American-trained rebels. Defense officials now say they believe one of those rebels was killed in a firefight late last week. NBC’s Richard Engel reports. ... more Duration: {{video.duration.momentjs}}