Biden and colleagues at the private equity firm Rosemont Seneca helped Burisma Holdings hire Blue Star Strategies, a firm owned by former Clinton administration officials Sally Painter and Karen Tramontano. Biden's emails show he played a bigger role than anyone had known in arranging Blue Star's consulting work for Burisma. Neither Biden nor the Blue Star founders registered their work under the Lobbying Disclosure Act or the Foreign Agents Registration Act.

Biden's work as a middleman could also explain why federal prosecutors began scrutinizing Blue Star's work for Burisma. Republicans have scrutinized Biden over his work for the company, one of Ukraine's largest natural gas producers, as well as with various Chinese companies. Federal prosecutors are also investigating Biden over his tax affairs and foreign business dealings. -Free Beacon