When and if Americans will get a federal tax cut has yet to be seen. Iowa Senator Chuck Grassley, one of the key negotiators in the congressional battle, says “it’s been going on for three weeks and absolutely no sign of success.” Grassley said over the weekend he hopes President Bush can convince resistent Republicans to change their views and adopt his desired higher amount of tax cuts.Grassley, chair of the Senate Finance Committeee, says there’s no specific time frame for the lobbying effort — he just hopes the President is able to sway a few more members of his own party into seeing the benefits of a larger tax cut. He says a larger tax cut is in order to eliminate the marriage penalty and child credit and so marginal rates can be reduced.Grassley, a republican, says the Senate budget is set at a 350-billion dollar tax cut, while the House version is more like 550-billion. Grassley has been vilified by many in his own party, including Jim Nussle of Iowa, chair of the House Budget Committee, for pushing for the smaller tax cut. Grassley says the lesser cut is better than no cut at all.