MADISON, Wis. (AP) – Republican Gov. Scott Walker is promising his executive budget will cut income taxes.  Walker told reporters following a speech at a Wisconsin Bankers Association economic forecast luncheon he’ll include what he called a significant income tax cut in the spending plan. In his remarks to the association he called the cut a down payment, telling reporters later he’d like to phase in further cuts as the economy grows.  He says he wants to keep what he termed a sustainable level of property taxes, however. He says he doesn’t want to see either the income tax or property tax increase to offset cuts to the other.        He didn’t offer any further details, saying people would see the specifics when he introduces his budget next month.