More than half of his cash contributions, about $112,000, came from attorneys, law firms or companies that provide specialized services.
Also, about a third of his contributions, or more than $68,000, came from outside Kansas.
Six, a Democrat, filed a campaign finance report this week with the secretary of state's office.
Six has not said that he'll run in 2010, but his fundraising is evidence that he plans to do so. No Republican has announced plans to run.
(Copyright 2009 by The Associated Press. All Rights Reserved.)