So far, all we’re getting is “anonymous sources”. Obviously, having a source with a name is better than a source without one, but it’s understandable that anybody placed highly enough to provide information credible for media sources to rely on probably doesn’t want to lose their job. Not yet, anyway.
I’m hoping that a number of these “anonymous sources” will come forth and reveal what they know under subpoena as the investigation continues. But as long as nobody will talk about what they know publicly, it just feeds ammo to the Trumpbots who claim that all this is just made up to pick on poor Donald.