The Federal and State Affairs Committee will hear testimony Wednesday.
A 2007 law allows four state-owned casinos and also allowed horse and dog tracks to operate slot machines.
Negotiations between track owners and the Kansas Lottery, which owns the gambling, broke down last year over how much the tracks would get. The bill boosts the track's take from 25 percent to 43 percent while reducing the state's share from 40 percent to 22 percent.
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