Over 80% of people in the UK and US think their country is divided. Most of them believe our divisions are getting worse not better.   Changing that demands that we dig into what’s going on in our minds when our beliefs are challenged. With world renowned pollster, Deborah Mattinson, we explore this, why voters change their minds and what she has changed her mind on.    Further reading:

• IPSOS Mori - BBC Global Survey on the world divided