As a point of information Minnesota currently has a 4/4 delegation, which its had twice prior this century 2011-2013, and 2001-2007. This is likely due to the political geography of the state, but I think Minnesota is like Florida. It’s always just out of reach statewide, but the out party can be very competitive in the congressional seats.
The way MN's geography is, there are always a disproportionate amount of swing House districts in the state. In 2018 for instance, 6/8 congressional districts were considered competative. This means that MN tends to be a bit more reactive to wave years and stuff on the House level.
