That’s odd. We know Michael Flynn committed multiple felonies. We know that both Jeff Sessions and Jared Kushner perjured themselves by failing to mention meetings with Russian government officials, Sessions in testimony to Congress and both on their SF-86. We know that Donald Trump admitted to firing the head of the FBI because he didn’t like the way the investigation was going, which is quite possibly obstruction of justice. Paul Manafort pretty much constitutes collusion between the Trump campaign and the Russians all by himself, even if he didn’t talk to anyone.
How much more beef do you need to find, given that the legal investigation is in its early stages and that much of what they have found hasn’t been made public yet.