<p>Smart politicians from President Obama to New Jersey Senator Cory Booker have successfully embraced it to such an extent that it has now got to the stage that those who have failed to master technology are at a serious disadvantage, says Mr Kempner on a visit to London. He thinks the same will increasingly apply to business leaders.</p><p>Mr Kempner cites the example of Mr Booker, who recently won election for the first time after building up a Twitter following of almost 1.5 million users. "He writes his own tweets, he interacts with his followers," enthuses Mr Kempner. "This isn't about the overthrow of Egypt. It's about food stamps and the minimum wage."</p><p>There is now huge potential for anyone "who understands how to use technology to create movements", he adds. He has seen that phenomenon at first-hand as a member of the Obama for President National Finance Committee: Mr Obama's 2012 re-election tweet, "four more years", was famously retweeted half a million times by his 41 million followers.</p><p>So Mr Kempner has little doubt that chief executives and other business leaders should follow suit. "You must do it," he declares. "I strongly believe in 'the social CEO'. In most cases, CEOs and executives should be active in social media. But there must be a strategy. It can't be 'where they had dinner last night'."</p><p><a href="http://www.independent.co.uk/news/business/analysis-and-features/michael-kempner-barack-obama-guru-tells-business-to-get-social-9100681.html">Keep reading...</a></p>