Right now, it looks like the House is a Toss Up, or perhaps slightly favored towards Democrats. At the same time, the Senate is almost certainly going to remain Republican. RealClearPolitics - Election 2018 Now, the claim from Democrats for years has been that Gerrymandering prevents the Democrats from taking the House. Yet, the Senate is not Gerrymandered by any stretch of the imagination. There are no drawn districts in the Senate Elections, all of those are state wide. Everyone in the State can vote for the Senator, regardless of what District they are in. So the question, if Democrats take the House, and the Republicans keep the Senate, does that mean that the districts are Gerrymandered to favor Democrats? The States as a whole seem to favor Republicans, and if that is the case, as evidenced by the make up of the Senate, then how do you explain the Democrats taking the House and not the Senate? If the districts are not Gerrymandered in favor of Democrats in this scenario, then why doesn’t the House reflect the same averages as the Senate? If a majority of Senators are Republicans, then why not a majority of the Representatives?