George Soros is poised to take a massive stake in the nation’s second-largest radio company, which owns more than 220 stations nationwide, according to court filings and sources close to the situation.The left-leaning billionaire’s Soros Fund Management has bought up $400 million of debt in Audacy — the No. 2 US radio broadcaster behind iHeartMedia with stations including New York’s WFAN and 1010 WINS, as well as Los Angeles-based KROQ, according to bankruptcy filings.One insider close to the situation, noting that he was a Republican, said he believed it was possible Soros was buying the stake to exert influence on...