 On 19 November 2009, Westerwelle joined around 800 dignitaries from around the world – including US Secretary of State Hillary Clinton, French Foreign Minister Bernard Kouchner and British Foreign Secretary David Miliband – to witness Afghan president Hamid Karzai’s swearing in for a second term in office.In late November 2010, leaked U.S. diplomatic cables revealed that American diplomats considered Westerwelle an obstacle to deeper transatlantic relations and were sceptical of his abilities, with one cable comparing him unfavorably to former German foreign minister Hans-Dietrich Genscher.On 3 December 2010, Westerwelle dismissed his personal assistant Helmut Metzner following a WikiLeaks diplomatic cables release which led to Metzner admitting that he regularly spied for the U.S. By May 2011, opinion polls ranked Westerwelle as one of the most unpopular and ineffective foreign ministers since the late 1940s.