The Biden administration is returning to the Pentagon more than $17 billion diverted by the Trump administration to build the wall at the southwestern border, and plans to cancel all related construction contracts, an administration official told ABC News on Friday. Amid its ongoing review to determine the fate of Trump's border wall, the Biden administration also said it would launch two new projects along the 1,900-mile U.S.-Mexico border: one to fill holes in the Rio Grande Valley levee system left by the wall construction project, and another to address soil erosion in a 14-mile stretch of barrier construction by the Trump administration near San Diego, California.