The Senate races are most certainly manipulated. There're 100 of them, 2 per state and are easily targeted. They also serve 6 years as opposed to 2, so it is worth it to manipulate senate. Seats were open in such a way that it benefitted democrats to make gains, so they probably took the ones they could without arousing more suspicion.
House has a tendency to be further left leaning and it was slim as slim could be. It usually matches to popular votes, which is based on census data, that was from Obama, which included illegal immigrants, criminals, and more. So Democrat vote holes typically get more house reps.
The Senate races are most certainly manipulated. There're 100 of them, 2 per state and are easily targeted. They also serve 6 years as opposed to 2, so it is worth it to manipulate senate. Seats were open in such a way that it benefitted democrats to make gains, so they probably took the ones they could without arousing more suspicion.
House has a tendency to be further left leaning and it was slim as slim could be. It usually matches to popular votes, which is based on census data, that was from Obama, which included illegal immigrants, criminals, and more. So Democrat vote holes typically get more house reps.