First on TVNewser: Dan Rather‘s lawyers have served CBS with an amended complaint related to Rather’s fraud case against his former employer. The complaint will be filed with the court tomorrow morning. TVNewser has learned the amended complaint contains details about Rather’s last days at CBS including, we hear, particulars about that flawed National Guard Story.

In a statement, Rather says “In essence, the Amended Complaint provides specific detail in support of the fraud claim. I continue to stay focused on the big picture and look forward to getting to the truth.”

Rather is anchoring a primary special on HDNet tonight, live from the Newseum in Washington, DC.

> More: In a statement to TVNewser, CBS says, “Mr. Rather is trying to put forth fraud complaints that the court has already determined to be legally unfounded. We believe he will fail a second time. We will file an appropriate motion to dismiss.”