A federal investigation into the financing behind Donald Trump’s foray into social media has grown to involve the FBI, the SEC, a division of the Department of Homeland Security and what is being described as “one of the government’s most elite anti-money-laundering teams” according to a new federal filing. According to a deep dive by the Washington Post’s Drew Harwell, there is no indication that the former president and his Trump Media have been accused of wrongdoing in the case involving the troubled Truth Social thus far, but there are questions over his involvement in “a business arrangem…