Kansas Revenue Secretary Joan Wagnon continued to press her case last week that the state has given up enough revenue in tax cuts and exemptions for now — nearly $10 billion since 1993. She advocates banning new sales-tax exemptions and rescinding some existing ones, likening a tax break to a state handout. "Ask some hard questions instead of saying. 'Oh, they sound like a nice organization,'" she said at a discussion in Topeka. "Enough is enough; we can't do any more of these. We need to stop. We're just simply forcing that property tax higher and higher."