Looks like Alaska Dems are lining up to take on GOP Rep. Don Young, a TPMmuckraker all-star who's held his seat for more than three decades.

Anchorage TV station KTUU reports that Alaska State Dem chairman Jake Metcalfe is filing paperwork this morning announcing his bid for Young's seat. He's the second Dem to announce a run.

Metcalfe's focus: An ongoing Federal investigation of Young's ties to VECO Corporation, an Alaska-based oil field services company that's part of a public corruption probe.

TPMmuckraker's coverage of Young is right here.