Remember the whole "lock her up" movement that wanted Hillary Clinton put away for using a private account for sending emails while she was secretary of state? It turns out that Ivanka Trump, Donald's daughter and a senior advisor to the President, is guilty of the same apparent misdeed as Clinton was.

A Washington Post investigation has found that Ivanka used her personal email to send hundreds of messages to aides in the White House, cabinet officials and assistants about White House business and was apparently unaware that she had stepped outside government guidelines.

Clinton's use of a private email server, Trump senior has said, was a crime "bigger than Watergate" which had put America "in danger". The FBI investigation concluded that she and her team had been "extremely careless" but that no criminal wrongdoing had occurred.

Whether the emails were ever really about the emails is another question, and it'll be quite interesting (read: not at all surprising) to see which of the commentators having coronaries over the security of Clinton's emails will hold Ivanka to the same standard. The email palaver helped to coalesce the swirl of conspiracy theories about the Clintons - who had become both an extremely specific locus of hatred for the American right and a totem for the more general mistrust of what Trump weaponised as "the swamp" - into a single handy phrase: "Lock her up".

It was the most politically mainstream of the thread of half-truths, lies and demonisation which led directly through intimations that Clinton was personally responsible for the deaths of four Americans in the 2012 Benghazi terrorist attack (none of the many investigations around it have found Clinton or the Obama administration responsible), and on towards the wilds of the Pizzagate and QAnon conspiracies.