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With a little less than two months left for Vince Gray, a new report from the Post indicates that it could be a rocky time for the outgoing mayor. The Post’s Mike DeBonis reports that Gray rejected a plea deal by federal prosecutors in September, and an indictment could be soon be on the way.

In the long-running federal investigation of his 2010 campaign—of which six people have pleaded guilty to federal crimes, including businessman Jeffrey Thompson, who admitted to funding a $653,000 “shadow” campaign—U.S. Attorney Ron Machen may be close to indicting Gray. The Post reports:

Prosecutors have also re-interviewed key witnesses in recent weeks, several individuals familiar with the case said — a further indication that authorities are marching toward an indictment of the outgoing mayor.

A deputy to U.S. Attorney Ronald C. Machen Jr. offered the plea deal in a mid-September meeting with Gray’s attorney, Robert S. Bennett. The person with knowledge of the talks said Gray (D) was not present for the plea offer, which would have required him to admit to one felony count. Bennett told the prosecutor that Gray would not accept any deal requiring him to plead guilty to anything.

But Gray has remained stern in denying he ever knew about Thompson’s “shadow” campaign. He told the Post “what would I plead to? I’ve made clear all along what my feelings are about this whole situation. . . . So I’m not about to change anything. What would I plead to? I don’t know how to put it any other way than that.”

If Gray were to be indicted and fight it in court, it wouldn’t be an easy case for prosecutors, a lawyer involved in the case but not representing Gray told the Post. That is a possible reason why he rejected the plea deal, which asked for him to admit to one felony count.

“If we were where [Gray] was, you’d have to try me,” the lawyer told the Post.