Face the Nation 2016 diary, January 20: Sarah Palin endorses Donald Trump

Face the Nation 2016 diary, January 20: Palin... 05:23

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 20 entry, Dickerson discusses how the Republican primary will be affected by former GOP vice presidential nominee Sarah Palin's endorsement of Donald Trump, and by Iowa Gov. Terry Branstad's criticism of Sen. Ted Cruz.

Previous diary entries:

January 15: Donald Trump, Ted Cruz battle at GOP debate

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?