JOE BIDEN has claimed the Pentagon’s “full blown” investigation is “getting close” to finding out who was behind the “top secret” document leak. When asked about the file leak, the US president said: “There’s a full blown investigation going on, as you know with the intelligence community and the justice department, they’re getting close – I don’t have the answers.” He added: “I’m concerned that it happened but there’s nothing contemporaneous that I’m aware of.” It comes as officials are investigating, Jack Teixeira, the leader of an online forum where a massive trove of Pentagon documents was leaked. He is a member of the intelligence wing of the Massachusetts Air National Guard, reports The New York Times, and investigators want to talk to Teixeira about the leak. Read our Ukraine war blog below for the latest news…