Rod Rosenstein
GOP House members drafted articles of impeachment against him the day before.
It's a "last-resort option," said one of the draft's authors.
Top GOP lawmakers have been putting pressure on the DOJ to release the documents.
The walls are closing in.
WHAT'S HAPPENING
A coalition of advocacy groups has planned rallies in hundreds of cities in the event Trump fires Rod Rosenstein.
Experts, however, say only Deputy Attorney General Rod Rosenstein has the power to remove Mueller.
And Deputy Attorney General Rod Rosenstein is on the line.
"We’re not messing around here."
The president also reportedly has weighed firing special counsel Robert Mueller.
The special counsel has also told the president's lawyers that Trump is not a criminal target at this point.