WASHINGTON — The day in July 2016 that FBI Director James Comey defended to Congress the bureau’s decision in the Hillary Clinton email probe, two FBI officials traded admiring texts about his verbal dexterity — and mocking jibes at the lawmakers questioning him. Congress, wrote FBI lawyer Lisa Page in one text, is “so utterly worthless.” ”Less than worthless,” replied Peter Strzok, a seasoned FBI counterintelligence agent assigned to the Clinton investigation.