New York Times: “The president, who eked out a 12,000-vote victory in Georgia, received a small but potentially important boost from the state’s conservative areas if at least one local Democrat was running in a down-ballot race… That finding extended even to the state’s reddest districts.”
“The phenomenon appeared to hold nationally. Mr. Biden performed 0.3 percent to 1.5 percent better last year in conservative state legislative districts where Democrats put forward challengers than in districts where Republicans ran unopposed.”