There was no budget after Clinton got in. Bush the First had this grand vision for a Mars mission, but then the economy downturned.
However, NASA did work on the X-33 VentureStar project in the late 90s before it ran overbudget and was cancelled: at that point they were still ideologically wedded to the idea of trying to build a SSTO spaceplane, even though that appears to be impossible with current technology.