Prosecutors in Hunter Biden’s upcoming tax trial referred to the first son as a lobbyist in their indictment. Was it just a biography reference or a signal of fresh legal jeopardy? Here is what we know. Biden originally worked as a lobbyist for a brief period in between 2001 and 2008, stopping before his father ran for president. But Biden continued to earn lucrative monies throughout his later business career as he partnered with foreign partners that sought to influence U.S. policy.