text: The legislature 's involvement was precipitated in 1996 by the reported amounts of improper payments in Texas ' Medicaid program ( estimated to range from $ 365 million to $ 730 million , or 4 to 8 percent of total expenditures ) and Temporary Assistance for Needy Families ( TANF ) and Food Stamp programs ( estimated at a total of $ 222 .
  
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  70 % of Medicaid expenditures were improper , so the legislature got involved .