A French public prosecutor today opened an investigation into the financial dealings of the head of Emmanuel Macron's successful presidential campaign, throwing a new spotlight on sleaze in a fraught election year. <br/><br/>The inquiry comes 10 days from a parliamentary election where Macron, 39, hopes his new political party will win control of the National Assembly and consolidate his grip on power after his own election on May 7. <br/><br/>It also comes just weeks after the end of a presidential campaign in which two of Macron's main opponents were hamstrung by corruption allegations, and as the new president's government prepares new anti-graft legislation. <br/><br/>The public prosecutor in the western city of Brest said he had decided to open the inquiry after a string of media reports about the business and financial dealings of Richard Ferrand, minister for territorial planning in Macron's new government and a former Socialist who became one of his key early backers.