A self-taught journalist, Laurence (Laura in the U.S.) began her career at 17 years old at RTL Radio as a reporter before becoming a foreign correspondent for Capa Press Agency covering international events such as the famine in Somalia, the war in Bosnia, and the situation in Gaza. Given her deep interest in the United States, she moved to New York in 1992 to create the first office for Canal Plus Group, where she worked as a correspondent until 2001. In 2001, after September 11, Laurence was on assignment in Israel when she witnessed a suicide bombing, which she began filming. Dan Rather of CBS News was also on location and decided to hire Laurence as a video journalist and producer for CBS News. From 2002 to 2006, she covered the war in Iraq and the situation in the Near East for CBS while based primarily in Baghdad.
In October 2006, she returned to the United States and offered to follow exclusively Barack Obama's campaign for Canal Plus. In 2008 she became an accredited White House and Pentagon correspondent for Canal Plus Group. She also worked exclusively on Guantanamo, where she traveled over eight times. She created a group for foreign press members accredited to the White House, and from 2009 to 2014 she was President of the White House Foreign Press Association. She is the only French journalist who has done three exclusive interviews with Barack Obama during his time as senator and president.
In April 2015, before anyone else in Europe she also offered Canal Plus to cover Donald Trump's campaign and became the only permanent accredited European journalist for the Trump campaign from August 2016 until his election. For Canal Plus Group she has done exclusive political interviews in France with former President François Hollande, as well as Marine Le Pen.
In 2015 she was also the only French journalist who obtained an interview with Israeli Prime Minister Benjamin Netanyahu during the war in Gaza. She was named in France in 2013 and 2014 Best Foreign Correspondent and received the same year the Award "Femme en Or, Media Woman of the year The Newsmagazine France- Amérique quoted her as one of the most important French person living in the U.S.
During the Bataclan attacks in Paris she became a familiar face on MSNBC covering for the 24 hours cable news channel the tragic event. She was Chevalier of La Legion D Honneur in 2015 for her work dedicated to serious journalism and what she did in the U.S. To the surprise of many in France, she joined Emmanuel Macron's team in December 2016 where she was offered the position of Spokesperson for international affairs during his campaign.