Shouldn't this be bigger news??
Not without physical evidence... ie video/pictures etc. That's what gets these stories traction.
I suspect that's coming shortly.
If evidence of this (or some other scandal) actually exists, I think the most effective time to publish it would be late Thursday or on Friday. That would give it time to get into the news cycles and the Sunday talk shows to cover it. Then if it was truly bad, next week would see more Republicans distancing themselves from Trump. He would lash out at any "traitors", causing maximum disruption to the GOP heading into Election Day.