Donald Trump has become the fourth president in US history to face impeachment proceedings. Nancy Pelosi, US Democratic speaker of the house, last night announced the start to formal impeachment proceedings. The issue centres around allegations the President enlisted the help of the Ukrainian government to boost his re-election campaign by investigating the son of Democratic front runner Joe Biden. Whilst the proceedings are not seen as a market moving event, Asian markets closed down on the impeachment news predominantly because of its ramifications on the US China trade deal.