The generic ballot has proven to be a fairly accurate predictor of the national outcome of the House elections. Less so for Senate elections of course. The recent results have ranged from a small Democratic lead to a small Republican lead, averaging close to a tie. That would predict significant GOP gains in November. But a better prediction is possible by using other factors along with the generic ballot such as seats held going into the election, presidential approval, and just the fact that it's a Democratic midterm. In general, all of these point to large Republican gains--possibly large enough to regain control of the House, although probably not the Senate where 10 seats is a big hill to climb.



