evidence: Questions have been raised over the past two decades about Hunter Biden's business practices, and whether he had leveraged his name and access to his powerful father to make money and land clients. [...] In 2013, the younger Mr Biden became a founding board member at BHR, a private equity firm backed by some of China's local governments and largest state banks. [...] On 9 August, Mr Comer cited bank records obtained by his panel that he said showed the Biden family and its associates had earned $20m from oligarchs in Russia, Kazakhstan and Ukraine during his vice-presidency.