Welcome to the "Face the Nation" 2016 diary - a recurring feature that will bring you the latest news and analysis on the 2016 election from CBS News political director and "Face the Nation" moderator John Dickerson.

In the January 5 episode of the diary, Dickerson discusses the factors at play as campaigns decide where to send the candidate during the final few weeks before voting begins.

Previous diary entries:

January 4: Donald Trump's first television ad