 These included widening the disclosures of short positions to derivatives instruments, pushing for more transparency around the borrowing and lending of stock, and investigating whether market functions are jeopardised once short selling reaches a certain volume of shares.On 5 July 2010, following its investigations on the "Liliane Bettencourt and Éric Woerth" political controversy, the online newspaper Mediapart revealed a report where Claire Thibout, an ex-accountant working for Liliane Bettencourt, accused Nicolas Sarkozy and Woerth of receiving illegal campaign donations in 2007, in cash.The "Canard enchaîné" and "Marianne" weeklies later revealed that Woerth authorized the sale of the Compiegne racetrack to a group with close connections to the UMP, for a very low price and through an improper procedure.