Democrats may be making their last stand in Arkansas. At the beginning of the cycle, Democrats touted a dream ticket that could help rally the party back to relevance after a series of stinging losses in the state. They cheered Sen. Mark Pryor’s (D) centrist profile and strong family name. In the governor’s race, they hoped former Rep. Mike Ross’s long string of successes in conservative southwest Arkansas would boost him. But months later, Pryor has trailed freshman Rep. Tom Cotton (R-Ark.) for much of the summer in the Razorback State and former Rep. Asa Hutchinson (R-Ark.) has had a...