over this week. closest insiders subpoenaed under law. trump dismissing the investigation with his usual talk about witch hunts, but this isn't a witch hunt. this is a march for evidence. we're also seeing other new avenues for accountability, including video showing body cam video of a police officer who was savagely attacked again by that maga crowd that donald trump summoned. this is a day that we know a lot about, but it's newly released, and as always, we do want to warn you, it is graphic. >> punch him! [ bleep ] [ bleep ] [ bleep ]. >> that's government evidence, the first time we've aired it on "the beat." it's difficult to even watch a few seconds of it, and this went on for hours. we are still learning about the