President Donald Trump sank a major Senate Republican effort to renew a critical U.S. surveillance program this week after demanding lawmakers attach his voter identification legislation to the bill, exposing a rare split between the White House and GOP leaders on Capitol Hill.
The dispute centers on Section 702 of the Foreign Intelligence Surveillance Act, known as FISA, one of the intelligence community's most important tools for monitoring foreign threats. Intelligence officials have long argued that the authority is essential for tracking terrorists, cybercriminals and foreign adversaries.
