You make the unwarranted assumption that Republicans want a "victory" in the matter of federal spending. Both parties are addicted to out-of-control outlays. The game in any budget war is to see which party can walk away with the most money. Most empires end when the politicians bankrupt their treasuries. You don't have to go back to Rome to find the pattern. See France ca. 1789, China ca. 1910, Russia ca. 1917 and Britain ca. 1945. Our feckless politicians are determined to add the US to the list of bankrupt empires.