Joni Ernst

Reporting a new poll out on the Iowa Senate race on this evening's program, Hardball host Chris Matthews seemed a bit befuddled that a Tea Party conservative who grew up on a farm, Joni Ernst, is actually leading a Democratic lawyer Rep. Bruce Braley (D-Iowa) who waded into a muck a few months ago with an elitist-sounding crack about Sen. Chuck Grassley (R) being a "farmer from Iowa who never…