The treasurer's office was open because incumbent Treasurer Robin Wiessmann agreed not to seek a full four-year term when she was appointed in 2007 to fill a vacancy created by Bob Casey's election to the U.S. Senate.

Each of the row offices carries substantial responsibility and an annual salary that is currently about $142,000. The attorney general is the state's chief law-enforcement officer; the treasurer manages billions of taxpayer dollars; and the auditor general is taxpayers' fiscal watchdog in state government.

Corbett, 59, is a former federal prosecutor for western Pennsylvania who is often mentioned as one of the GOP's best potential candidates for governor in the 2010 election. He said he will answer the question of a possible gubernatorial candidacy "somewhere down the road," noting that he still has work to do on the legislative corruption investigation which, he said, will yield more arrests.

Twelve people connected to the House Democratic caucus have been charged amid allegations that millions of dollars in taxpayers' money and other resources were illegally siphoned into political campaigns. Corbett has said both parties are under scrutiny.

Wagner could be a gubernatorial candidate in 2010, too. Asked about it, Wagner said he wants to relax, enjoy his victory and focus on doing a good job as auditor general.