Big question is whether Grassley ran his statement by the Majority Leader before releasing it to the media.
The answer could be a harbinger of how a Senate Impeachment trial would be conducted.
I doubt it. Grassley routinely puts out press announcements on a bvariety of subjects. It's his way of "tooting his horn." Some of the releases are quite informative. He's been onto the Russian hoax for years.
News Releases | Chuck Grassley <- I have this bookmarked