@layman,
Isn't it amazing how Trump supporters have to re-litigate the past?
Imagine this kind of whataboutism under Barack Obama - if Obama supporters had, nine months after the election, been routinely saying "but what about this thing Mitt Romney did seven years ago, which is, if you think about it, in some kind of way vaguely similar to the current ****-up by the President?"
And of course, it's not just random Trump supporters on the internet. This whataboutism is being pushed by Fox News (where layman found this article), by Breitbart, by complete crazies like Alex Jones, by conservative talk radio nuts, by people in the Trump administration and campaign, and, most ridiculously, by the President of the United States of America in his official statements and speeches.
No matter how Trump happens to **** up on a particular day of the week, there's always a "but what about Hillary Clinton" talking point to rile up the base. Very presidential.