Seven years ago, David Cameron left Downing Street after his big gamble to hold a referendum on Britain's membership of the European Union backfired and brought his six-year term as prime minister to an end.

Now, he has been appointed foreign secretary by Prime Minister Rishi Sunak. Will David Cameron’s return to government help Rishi Sunak going in to the next general election? 

Cedomir Nestorovic, Professor of Geopolitics, ESSEC Business School, Asia-Pacific breaks it down for us.