These charts reflect information in the latest Economist / YouGov Poll -- done between April 1st and 3rd of a random national sample of 1,500 adults, with a 3 point margin of error.
It shows the seeds for a wave election are still there. The public is extremely unhappy with Congress. And while they aren't thrilled with either political party, they prefer Democrats over Republicans. On the generic ballot, Democrats have a 7 point lead.