No need to wait.
It won’t happen, the Republicans will gain a dozen or two seats in the House.
I’m inclined to agree. Those blue state voters that flipped to vote for Trump are still pretty happy with him, and now they are outraged over the Kavanaugh fiasco, so they are more likely to be enthused to get out and vote in the mid-terms.
Dems are just hoping the same old tired coalition that couldn’t push Hillary’s comatose body across the finish line will somehow magically be able to win now. How, nobody is exactly sure.