“We are supposed to trust that this administration is earnestly looking for fraud in public programs even as it seeks to undermine the programs themselves,” Times columnist Jamelle Bouie writes. (Jens Masmann/The New York Times) By JAMELLE BOUIE Since March, Vice President JD Vance has been tasked with rooting out any fraud perpetrated against the federal government. “This is a very big thing that we’re doing,” President Donald Trump said when he announced the task force. “If we found half of…