reporter: tonight the israeli military publishing video of what it says is an operational tunnel inside the al shifa hospital complex. the idf has been operating around the complex for days, closing in on what they long asserted was a hub of hamas activity. ak-47s. we see handcuffs. reporter: doctors and health officials in the hamas-run enclave have denied those accusations. but this, the israeli military says and this is where they choose to hide everything. reporter: is part of the evidence they had promised as the idf continues its operation in the hospital complex that began early wednesday morning. it s not just the credibility of the idf and israel that s at stake. president joe biden says he feels absolutely confident hamas is there as the u.s. throws its weight behind israel. the first war crimes being committed by hamas by having their headquarters, their military hidden under a hospital. reporter: on thursday gaza again found itself under a total
breaking news. welcome to the lead. i m jake tapper. we start today with a breaking news, cnn exclusive. the special counsel investigating hunter biden is now using a los angeles grand jury as part of the investigation into the business dealings of president biden s son. that is according to sources that tell cnn that president biden s brother, james biden, is among the people who have gotten a subpoena in recent weeks. this major development comes just as sources tell cnn that a separate special counsel, one raiding the handling of classified documents, is not expected to bring any charges in that case. paula reid is breaking had news for us. walk us how this grand jury in los angeles is being used. reporter: jake, multiple source tell cnn that multiple witnesses have been subpoenaed to provide testimony and documents for the investigation into hunter biden s personal finances. one of the individuals that has received one of these subpoenas is his uncle, james biden. t