[cnn-photo-caption image= http://i2.cdn.turner.com/cnn/2008/POLITICS/09/05/palin.trooper/art.wooten.cnn.jpg caption="Alaska State Trooper Mike Wooten is Palin's ex-brother-in-law."]
ANCHORAGE, Alaska (CNN) - Alaska lawmakers Friday moved up their deadline for finishing an investigation into Gov. Sarah Palin's firing of the state's public safety commissioner and warned they will begin issuing subpoenas for witnesses next week.
The report into Public Safety Commissioner Walter Monegan's dismissal had been scheduled for October 31. But now that Palin is the Republican nominee for vice president, lawmakers want to avoid an "October surprise" that could sway the November presidential election, the investigation's managers said.