In Hubris: The Road to Donald Trump, David Owen analyses and describes the mental and physical condition of US Presidents and UK Prime Ministers with a particular view that what went before paved the way to President Trump. Of recent leaders there have been alcoholics, depressives, narcissists, populists and those affected by hubris syndrome and driven by their religious beliefs. But Donald Trump, a world class narcissist, presents a very different set of issues, as does Boris Johnson, the UK Prime Minister, also discussed in this revised edition. A trained physician and neuroscientist, David Owen is uniquely qualified to assess Trump and Johnson in their political, philosophical and medical contexts. Both are 'populists' and both have been economical with the truth. Trump is an inveterate user of social media and some of his 'Tweets' have been branded as outrageous and totally inappropriate for an American President. In 2020 he has faced an impeachment trial and in November will face the electorate as he seeks a second term. Boris Johnson's premiership is in its infancy. He has concluded the UK's exit from the EU but now has much to achieve to fulfil the promises made to the electorate in 2019, which gave an eighty seat majority to the Conservative party. Both Trump and Johnson have major roles to play in 2020. Trump's Middle East initiative, his attempts to quell the tension with Iran and North Korea and his plans for trade with China, will define his first four years. Johnson's focus must be on maintaining the United Kingdom, implementing new trade deals, worldwide, post Brexit and addressing the NHS, regional development and defence spending. The likely success of both President and Prime Minister is assessed by David Owen in his customarily incisive way and the book is an essential read for all with an interest in politics and the psychology of world leaders. David Owen is the author of several acclaimed books on politics, political history and the health of world leaders. He qualified as a doctor in 1962, was a Labour MP from 1966-81, an SDP MP from 1981-92 and from 1992 sat in the House of Lords as an Independent Social Democrat. He held several government posts under Wilson and Callaghan, the last as Foreign Secretary. Lord Owen continues to speak out on international affairs and to support research into hubris syndrome and other psychological conditions as there is 'compelling evidence that the course of history has been changed ... by the ill health of world leaders.'