The odds on that happening are slim or none. It's our fault that they have even established a talking point on that. They have twice as many Senate seats up for grabs as we do and they are in far more jeopardy of losing more seats than ever gaining anything at all.
We need to work on that chattinggpoint a lot more than we have.
Actually the odds are in favor of the rats in 2020. 33 seats are up and 21 are republican. They defend 12 and we defend 21. They could have a big money advantage and by then may have more illegals ready to vote in red and purple states. Right at the top of my head would be Tillis in N. Carolina. Might be a tough seat to hold unless Trumps coat tails save the day?