September 9, 2016 - US threatens new sanctions on North Korea; Election campaign grinds on

A round up of the day's big stories in the US, via rolling news station LBC London News. Simon reports on President Obama's threat to impose new sanctions on North Korea, and on the latest twists and turns in the US election campaign. You can subscribe to Simon's "Race for the White House" podcast from LBC here: https://itun.es/i6hg9jh