The president suffered a bit of a memory lapse yesterday during a taping of “Late Show with David Letterman,” when he just couldn’t seem to recall the amount of the national debt. Conservatives have been participating in a memory-jogging exercise of their own today with the #RememberWhenObama hashtag, and nostalgia isn’t quite the word to describe the results.

The memories are just flooding back, aren’t they? Keep ’em coming, Twitter!