J. Miles Coleman, a political cartographer at the University of Virginia’s Center for Politics, described the 2010 election as a “generational year” for Republicans that the Democrats just haven’t been able to reverse. “You didn’t really get the same kind of flips in 2018 and 2020 for the Democrats,” Coleman said. “One of the under-reported stories of 2020 was the Democratic lack of success in state legislatures.”