Fox CEO James Murdoch gave Fox News a post-election vote of confidence, calling its prospects for 2017 “strong,” at an investor gathering today. Although news ratings have dropped since the election, and “are likely to be harder” in 2017, rivals CNN and MSNBC “dropped down more than we have in the aftermath,” he told the UBS Global Media and Communications Conference. The company was “decisive and did what we needed to do” after on-air personality Gretchen Carlson and…