Congress is struggling to extend a key surveillance law — in part due to privacy concerns and to Trump's pick of Bill Pulte for spy chief.

Forty-five days after Congress punted a fight to reauthorize Section 702 of the Foreign Intelligence Surveillance Act, Republican leaders are staring down a new deadline.

Congress spent another day stalled on the renewal of a key surveillance authority Tuesday, as President Donald Trump declined to help clear a legislative path and instead dug in…