The White House budget office launched USASpending.gov in 2007 to track federal spending after scores of lawmakers, including then-Sen. Barack Obama, successfully pushed through a bipartisan bill to ensure greater transparency with the funding. At last check, less than 8 percent of the site’s spending information was accurate, and federal agencies had failed to report nearly $620 billion in grants, loans and other forms of assistance awards, according to a recent report from Congress’s nonpartisan Government Accountability Office.