Richard Nixon was first US President to visit China in 1972. Gerald Ford, Ronald Reagan, George HW Bush and Bill Clinton visited China in 1975, 1984, 1989 and 1998 respectively. George W Bush went to China in 2001, 2002, 2005 and 2008 while Barack Obama went in 2009, 2014 and 2016. Donald Trump is on a two-day visit to China.