For about a week at the beginning of September, with aid to Ukraine on hold and a deadline for its release approaching, the Trump administration's diplomatic team in that country was scrambling. It wasn't clear why the aid was being held back or how it would be released.

WASHINGTON - Timothy Morrison, a former White House national security official, told House investigators in sworn testimony that he feared leaks of the contents of the July 25 call between President Donald Trump and Ukrainian President Zelensky would be damaging, so he recommended restricting access to the transcript.