Five Republican lawmakers in Alaska want a judge to stop what they call an "unlawful, biased, partial and partisan" investigation into Governor Sarah Palin's firing of a public safety commissioner. A bipartisan oversight committee had unanimously approved an inquiry into whether Palin dismissed the commissioner because he wouldn't fire a state trooper, who is also her ex-brother-in-law.

For the latest, and reaction to the lawsuit - join ABC Alaska News tonight at 5, 6 and 10.