things that have a real impact on the investigation. and what that tells me is that he thinks trump knows things that would have an effect on the investigation. so this whole claim of trump knows nothing about collusion, no conversations with russians, that just doesn t ring true with what dowd is saying here about the back story. we re going to have to squeeze in a break here. mimi rocca and jason johnson, jason is going to come back, thank you both for joining us. coming up, the president who can never find fault with vladimir putin now faces a new test. we have an nbc news exclusive report tonight that russia may have been behind an attack against u.s. diplomats in cuba. here is more of bob -computer, order pizza. -of course, daniel. -fridge, weather. -clear skies and 75. -trash can, turn on the tv. -my pleasure. -ice dispenser, find me a dog sitter. -okay. -and make ice. -pizza delivered.