080519 532 A western Iowa Republican lawmaker says he's holding a campaign fundraiser featuring U.S. Sen. Chuck Grassley at a shooting range despite calls for him to cancel the gun-centered event following weekend mass shootings in Texas and Ohio. State Rep. Steve Holt says his Sweet Freedom Celebration in Denison remains scheduled for tonight and Grassley's staff confirms he will attend and deliver a speech. Holt posted on his campaign Facebook page Sunday that "mental deviants have killed