Can We Trust the Opinion Polls? - Episode 3 - ÃÛÑ¿´«Ã½ Sounds

Can We Trust the Opinion Polls? - Episode 3 - ÃÛÑ¿´«Ã½ Sounds
Episode 3
David Cowling asks if political opinion polling will be more reliable in future.
David Cowling asks if political opinion polling will be more reliable in future.