OK, well for a valid (”reasonable”) search or seizure, probable cause is required (4A). I don’t know why they try to change “probable cause” to “reasonable grounds” except for maybe one reason - to eventually confuse it with reasonable suspicion thus lowering the standard by stealth, as the Left always does, in favor of the government.
Hopefully it’s not a negligible distinction being asserted like “extremely careless” vs “gross negligence”
Thus, IG Horowitz should be saying, “’PROBABLE CAUSE’ FBI Violated FEDERAL LAW in Bureau’s Handling of Hillary...”
Stronger and more likely actionable in using the actual wording of the Fourth Amendment.