Tomorrow the Senate Budget Committee will be marking up the Legislative Line Item Veto Act. On June 15, the House Rules Committee approved legislation (H.R. 4890) that would give line-item veto power to President Bush, in an 8-4 party-line vote. The Congressional Budget Office has estimated in this report that the line-item veto legislation's impact on the budget would depend on the "extent of the President's use of the new cancellation procedure and on future Congressional actions," but concludes it would not have huge fiscal implications. What the proposal would do is give the executive branch the power to force Congress to consider the president's spending priorities under fast-track procedures and allow the president to influence congressional compromise negotiations almost at any point.