Fifty years ago, the US Supreme Court Roe v. Wade decision effectively legalised abortion across the country. That decision was overturned last year by a very conservative Supreme Court. For over 100 years there has been a struggle between liberals and conservatives in America for control of the Supreme Court. The appointment by President Trump three conservative Justices to the Court has tipped the balance. How did this happen and what does it mean for the lives of ordinary Americans?