12/8: Rep. Mike Turner, Rep. Mike Kelly, Rep. Jason Crow

Reps. Mike Turner, R-Ohio, Mike Kelly, R-Pa., and Jason Crow, D-Colo.

This week on "Face the Nation with Margaret Brennan," Syrian rebels have taken control of Damascus, overthrowing the regime of President Bashar Assad. Plus, more on the congressional task force investigation into the security failures leading to the assassination attempts against President-elect Donald Trump earlier this year.