Barry Burden, political science professor at the University of Wisconsin-Madison and Director of the Elections Research Center, noted, generally, there simply aren’t many districts that Republicans can win and that are “swingable.”
“There aren’t very many competitive districts, whether we’re looking at the period before this latest round of mid-decade redistricting or since some states have put new maps in place,” said Burden. “Either way, there just aren’t very many districts that are truly up for grabs.”