The move toward information-sharing comes as President Donald Trump pushes his administration to use every resource to conduct what he hopes will be the largest mass deportation of immigrants in U.S. history.
Congress has less than two weeks to extend a federal funding deadline, but lawmakers are arguing over whether the White House will really spend the money they approve.
Officials with Elon Musk’s group say they want to search for fraud. Privacy law bars the IRS from disclosing tax information to other parts of the government.