Good grief.

He’s really not going to let this thing go, is he?

Trump’s obsession over the crowd size for his inauguration went on display – literally – earlier today.

President Trump on Tuesday shared an image of a panoramic portrait illustrating the size of his inauguration crowd that has been put on display in the White House press hall.

The photo was taken by a photographer named Abbas Shirmohammadi and delivered to the White House on Monday.

A photo delivered yesterday that will be displayed in the upper/lower press hall. Thank you Abbas! pic.twitter.com/Uzp0ivvRp0

— Donald J. Trump (@realDonaldTrump) January 24, 2017

Trump really needs that validation.

He made a Saturday meeting at CIA headquarters all about the media and how they tried to undercut the numbers for his inauguration.

Sean Spicer, White House press secretary, added to it, when he made the first official press meeting about the size of the crowd, refusing to take questions, but making the claim that it was the largest audience to witness an inauguration ever.

Reporters quickly pointed out that both Trump and Spicer were incorrect, evidencing lower Metro ridership on Friday than during past inaugurations and digging up photos clearly showing large empty spaces in the inauguration crowd.

Federal law prohibits the National Parks Service, which oversees the National Mall, from issuing an official estimate of crowd size.

The portrait of the crowd is in the hallway where it is sure to be seen by the media. It hangs on a wall along the hallway that connects the workspace of White House communications staff.

And while this is all very important to Trump, he missed a small detail.

The date on the photo isn’t for his inauguration day (January 20, 2017), but rather January 21, 2017, which would be the day of the Women’s March in Washington, which turned out massive crowds.

Of course, social media watchers were quick to point out the date.

Trump says he'll hang photo of inauguration crowd in press hall—but the date on the photo is Jan. 21 (#WomensMarch), not #Inauguration date. pic.twitter.com/k4UsslGKe6

— Bradd Jaffy (@BraddJaffy) January 24, 2017

I’m going to assume the date was the mistake, as you can see banners still hanging (and assuming those would have been taken down before the next day).

I reiterate that this is going to be a long four years, and if Trump doesn’t get his ego under control, he will let these insignificant details and slights stress him to poor health.