Diosdado Cabello, president of Venezuela’s National Assembly, is a leading target of U.S. investigations into alleged drug trafficking and money laundering by senior officials in the South American nation, a Justice Department official said. Mr. Cabello has denied wrongdoing. Photo: Marco Bello/Reuters U.S. prosecutors are investigating several high-ranking Venezuelan officials, including the president of the country’s congress, on suspicion that they have turned the country into a global hub for cocaine trafficking and money laundering, according to more than a dozen people familiar with the probes. An elite unit of the Drug Enforcement Administration in Washington and federal prosecutors in New York and Miami are building […]