Donald Trump's approval rating plummets after James Comey sacking

Donald Trump's approval rating has slumped to its lowest point in almost two months in the wake of his firing of FBI director James Comey.At the same point, Barack Obama had a 64 per cent approval rating, George Bush was at 56 per cent and Bill Clinton’s stood at 45 per cent.The Gallup daily tracking poll shows how a US president’s popularity is changing from day to day.