ATLANTICO, MARIANNE (France) Worldcrunch PARIS – Since becoming France’s first lady, Valerie Trierweiler has caused “nothing but trouble” at the magazine where she’s been working, according to a new biography of her boss, French publisher Arnaud Lagardère. Lagardère, the billionaire owner of French celebrity weekly Paris Match, is said to view the 47-year-old divorcee and […]