I don’t know a whole lot about political protocol, and if I’m out of line I’m sure plenty of folks will set me straight, but to me this seems almost in the same ballpark as Sarah Palin attempting to give her own concession speech on Election Night 2008.
I’m sorry, I’ve been thinking about this quite seriously for the past half-hour or so, and I just don’t see any possible way of looking at this tweet which doesn’t make it feel inappropriate. Even if it’s meant as a lighthearted joke (and I don’t get that feeling), it still undermines Hillary at the very point when Bernie should be winding things down.
UPDATE: A couple of people in the comments have defended Bernie by saying that “it’s a joke”. Apparently not...and the fact that Bernie “takes Trump at his word” on just about anything is disturbing for different reasons: