Dominique Strauss-Kahn: my political career is over The presidency was ultimately won by his fellow Socialist Francois Hollande. His political prospects nosedived after he was charged with sexual assault charges against a New York hotel chambermaid in 2011. The charges were dropped but he still faces trial in France for his alleged role in an international prostitution ring operating out of Lille, northern France. In a fresh blow to Mr Strauss-Kahn, the public prosecutor in Lille on Wednesday chose not to appeal a decision to send him to court on "aggravated pimping" charges along with 12 other defendants. Since his return to France, the former finance minister has set up his consultancy firm, Parnasse. In July, he was appointed a member of the board of directors at two Russian state-controlled financial institutions -- the Russian Fund for Direct Investment and the Russian Bank for Regional Development, the latter controlled by oil giant Rosneft. "These companies have given me the task of giving a broader vision of all the global markets," Mr Strauss-Kahn told Rossiya. "The chiefs of these firms decided that my knowledge would be useful and this work suited me because I think that all the economic forces should work together," he said. Quizzed about Russia's economic situation, he said it should "significantly internationalise its economic activity" and invest more in other countries. Serbia's deputy prime minister said last night Mr Strauss-Kahn could become an economic adviser for the Balkan country. Aleksandar Vucic told B92 television that he spoke to Mr Strauss-Kahn that the two talked "very briefly about the possibility of cooperation." He said Mr Strauss-Kahn could help Serbia deal with its public debt and other economic problems.