Seems to me it always looks like that to you...including just before they won back the house.
The opposing party winning back the house in the midterms after a Presidential election is par for the course in U.S. politics.
Obama got elected in 2008 guess what happened in 2010? 2010 United States House of Representatives elections - Wikipedia the GoP had the largest gain ever and won back the House.
But anyways it's clear the DNC is desperate to try and use anything they can, because they can't beat Trump on a level playing field. Otherwise they wouldn't be posting about his low golf scores and complaining that he gets 2 scoops of icecream while only offering 1 to guest.