As the Russia investigation heated up and threatened to shadow Donald Trump's presidency, he became increasingly concerned. But the portrait painted by special counsel Robert Mueller is not of a president who believed he or anyone on his campaign colluded with Russians to interfere in the 2016 election. Instead, the Trump of the Mueller report is gripped by fear that Americans would question the very legitimacy of his presidency. Would Trump, the man who put his name on skyscrapers and his imprint on television, be perceived as a cheater and a fraud? To Trump, his victory over Hillary Clinton was...