As we noted last night, Jim Clark, who served as Chief of Staff to former Alaska Governor Frank Murkowski, entered a guilty plea to charges stemming from the on-going public corruption scandal in that state. But, Clark isn't finished.  He now has to cooperate with the authorities.  And, we still don't know where that will lead -- although the names of two members of Alaska's Congressional Delegation, Senator Ted Stevens and Rep. Don Young, are under federal investigation:

Clark is the first member of the executive branch to be charged in the wide-ranging FBI investigation that has resulted in convictions of three former Alaska legislators, pending charges against a fourth, and guilty pleas by a lobbyist and Veco's Allen and Smith.

In a document describing the facts that Clark was pleading to, the government said that it was "merely" summarizing some of Clark's illegal conduct, "but not all." Clark is required by his plea deal to join a growing list of cooperating government witnesses required to testify before grand juries and at trials. The government is seeking to delay his sentencing at least six months because of the complexity of the ongoing inquiry.

While the agreement protects Clark from additional related federal charges as long as he assists the government, it doesn't block the state from pursuing its own charges.

Additional legislators, Stevens and U.S. Rep. Don Young, R-Alaska, are among those being investigated.

The charging documents said that even with his cooperation, Clark is facing more than three years in prison and a fine of up to $75,000.