Face the Nation 2016 diary, January 15: Ted Cruz, Donald Trump battle at GOP debate
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 15 entry, Dickerson discusses the latest GOP debate and the "public dissolution of the Donald Trump-Ted Cruz friendship of convenience."
January 12: The State of the Union
January 11: Candidates campaign in South Carolina
January 8: Candidates head to GOP anti-poverty summit
January 6: Trump takes on Cruz's Canadian birth
January 5: Where to send candidates in the home stretch?