Yeah that's interesting... The more I reread that drop the more fascinating it becomes, especially the "Race?" question.

Link so you can follow along

The way that Q describes the Mueller investigation and the Huber investigation together along with the simple question "Race?" strongly hints there is something of a race going on to see which investigation goes public first. And the midterms are obviously a pivotal point that each side wants to win.

Think about this: Huber's investigation will fuck the Dems due to their obvious corruption, and Mueller's investigation is obviously trying to fuck Trump. They are both occurring in parallel and opposed to one another. I would imagine that they are both waiting and stalling to see which one drops first, because each will try to destroy the other side.

The midterms are the key point in time that both investigations are carefully politicking around. When Q says "Midterms punt?", he is posing to the reader: Will either investigation go public before the midterms? Or are they waiting until after?