Topeka ? Two American Indian tribes plan to unveil next week their proposal for a $150 million casino project near Kansas Speedway in Wyandotte County.

The Kickapoo and the Sac and Fox tribes will outline the plan next Thursday to the federal and state affairs committees of both the House and Senate. Those committees traditionally deal with gambling matters.

Sen. Chris Steineger, a Kansas City, Kan., Democrat and a longtime supporter of expanded gambling in Wyandotte County, said prospects for a casino owned by American Indians should be improved. Gov. Kathleen Sebelius is regarded as more supportive of expanded gambling than former Gov. Bill Graves, he said, but “there still are big hurdles.”

Glenn Thompson, who heads Stand Up for Kansas, an organization generally opposed to expanded gambling, said he wanted to hear the details of the plan before commenting on it. He said if the plan contained some form of exclusivity that would prevent any further expansion of gambling in the state, “I’d certainly support that.”

The proposal, which would require a compact between the state and the tribes, is expected to include provisions that would funnel some of the casino profits to the state and to Wyandotte County governments.

Last April, the Kickapoo and the Sac and Fox tribes proposed a project to be located in Wyandotte County.

In a letter to Graves, they said the project grew out of failed attempts by all four Kansas tribes — the Potawatomi and the Iowa are the other two — to reach agreement on a casino development in Wyandotte County.

All four American Indian tribes now operate their own casinos in northeast Kansas.