File photo of International Monetary Fund (IMF) Managing Director Christine Lagarde holding a news conference in Washington

International Monetary Fund (IMF) Managing Director Christine Lagarde holds a news conference in Washington in this April 10, 2014 file picture. IMF chief Christine Lagarde has been placed under formal investigation by French magistrates on Wednesday for her alleged role in a long-running political fraud case, a source close to the former French finance minister said on August 27, 2014. Picture taken April 10, 2014. REUTERS/Gary Cameron/Files (UNITED STATES – Tags: HEADSHOT BUSINESS CRIME LAW)