Last month, The New York Times reported that Mr Clinton flew to Kazakhstan on the executive jet of Frank Giustra, a Canadian mining financier and multi-million dollar backer of the Clinton Foundation who was also seeking a contract with the Kazakh government.
Mr Clinton was there to see the work of his Foundation on an Aids project, but also praised President Nursultan Nazarbayev, who has been widely criticised for human rights violations, for opening up the social and political life of your country.
Mr Giustra, who organised a lavish charity dinner for Mr Clintons 60th birthday, was subsequently awarded a lucrative uranium mining deal in Kazakhstan ahead of more experienced industry competitors.
Thanks for the ping!