Jeff Flake - US Republican senator, Arizona

Sarah Montague speaks to Senator Jeff Flake, one of President Trump's harshest critics. He thinks the president is a danger to America and to the Republican Party, and he has exhorted his fellow Republicans to 'do something about him'. But any Republican who speaks out against President Trump suffers in the polls. It is why Senator Flake won't be standing for election again - he knows he won't win. So why does he think Republicans need to reclaim their party from their own president?