July 24, 2015: Many of Clinton’s emails contained classified information when they were sent, not just retroactively.

Intelligence Community Inspector General Charles McCullough and State Department Inspector General Steve Linick issue a joint statement about their inquiry into Clinton’s emails. The statement says that out of a random sample of 40 of Clinton’s emails, Linick found four emails containing information that should have been classified at the time they were sent. “These emails were not retroactively classified by the State Department; rather these emails contained classified information when they were generated and, according to [Intelligence Community] classification officials, that information remains classified today. This classified information should never have been transmitted via an unclassified personal system.” (US Department of State, 7/24/2015) 

One email will later be declassified by the State Department, and the department will dispute the classification of another one. (The Washington Post, 3/27/2016)