NEW: Ukraine embassy was asking about security assistance on July 25, Pentagon official Laura Cooper says. Says two emails on subject sent to her staff that day. Blow to GOP argument that Ukraine didn't know about hold.

NEW: Ukraine embassy was asking about security assistance on July 25, Pentagon official Laura Cooper says.

Says two emails on subject sent to her staff that day. Blow to GOP argument that Ukraine didn't know about hold.

— Ben Riley-Smith (@benrileysmith) November 20, 2019