Senators are warning that a key U.S. surveillance authority could expire this week after bipartisan opposition to President Donald Trump’s pick to lead the nation’s intelligence community derailed an extension effort. Section 702 of the Foreign Intelligence Surveillance Act allows intelligence agencies to collect communications from foreign targets overseas without a warrant and is set to expire June 12. Senate leaders had been nearing a deal to renew the program, but support collapsed after Trump named housing finance regulator Bill Pulte as acting director of national intelligence. Intelligence officials say the authority is critical to national security and foreign threat detection.