How far can Democrats ride the affordability argument? A progressive running in deep-red Tennessee is about to find out

By Arit John, CNN (CNN) — Aftyn Behn, the Democratic nominee for next week’s special election in a heavily Republican Tennessee congressional district, has made affordability concerns a centerpiece of her campaign messaging – mirroring the playbook of the party’s victorious candidates for governor in Virginia and New Jersey earlier this month. Tuesday’s contest is