NATO Concerns Over Mattis Departure

General Mattis is the latest member of the Trump administration to leave but who are the potential candidates for the role of defence secretary? That's not the only obstacle President Trump faces as the US government prepares for a shut down. Also in the programme: we'll hear from a spokesman for the Mexican Foreign Ministry on a new US policy regarding asylum seekers, and it's been another day of uncertainty for passengers at Gatwick Airport.

(Photo: Jim Mattis at a news conference after NATO defence ministers meeting in June 201. Credit: Reuters/Eric Vidal)