(CNN)It is nothing less than the most devastating, contemporaneous takedown of a sitting president in modern history.

The James Comey storm, brewing menacingly on the horizon for months, slammed into the White House just after 5 p.m. ET on Thursday, as the first leaks of the fired FBI director’s explosive new book started gushing out.

Comey paints unsparing portrait of Trump in devastating tell-all book