By Felix Light (Reuters) – Viktor Bout, the Russian arms dealer freed on Thursday after 14 years in U.S. custody in exchange for U.S. basketball star Brittney Griner, has joined the Kremlin-loyal ultranationalist Liberal Democratic Party (LDPR), its leader said on Monday. In a video posted on Telegram, LDPR leader Leonid Slutsky, standing on a stage beside Bout, said: “I want to thank Viktor Anatolievich (Bout) for the decision he has made and welcome him into the ranks of the best political party in today’s Russia.” Despite its name, the Liberal Democratic Party (LDPR) has since its founding …