Waukesha— As he prepared to kick off his presidential campaign, Wisconsin Gov. Scott Walker signed the state budget Sunday after using his veto powers to excise grants for conservation groups and a provision that would have given payday lenders new authority. Another change will give the Republican governor's administration more leeway to decide which food stamp recipients to test for drugs. In all, he vetoed 104 items from the budget — about twice as many as he did in the last two budgets he approved. The two-year, $72.7 billion spending plan doesn't raise taxes, freezes tuition at University of Wisconsin...