“Trump’s team is putting “maximum pressure on everywhere where redistricting is an option and it could provide a good return on investment,” according to a person familiar with the team’s thinking and granted anonymity to describe it.
…
a handful of Democratic-leaning states — including California — handed mapmaking power to independent commissions instead of leaving it in the hands of the state legislatures. States where Democrats retain the power to gerrymander, like Illinois and Maryland, have very little room to draw more advantageous maps than their current ones.”