US update - Republican debate, Oprah's secret son, Women of the Year

Lachlan Cartwright (Paul Henry)
Lachlan Cartwright (Paul Henry)

Paul Henry talks with US correspondent Lachlan Cartwright on the news making headlines in the United States this morning.

Today: a very fiery Republican debate, Oprah's secret son shows up, and Glamour magazine names their annual 'Women of the Year'.