In the late 1970s, President Jimmy Carter’s beer-loving, attention-grabbing younger brother, Billy Carter, stirred up serious trouble by cozying up to Libya, a country the U.S. saw as a hostile regime under dictator Muammar Gaddafi. Billy made several trips there, publicly praised their government, and ended up taking $220,000 from the Libyans—without bothering to register as a foreign agent, which is, well, illegal. As suspicions grew that Libya was using Billy to get influence in Washington, a