My column last week offered one explanation for why Democrats are losing the middle class. It drew upon the strategy Sen. Chuck Schumer employed when he was head of the DSCC to win over middle-class voters in 2006 and 2008, when Democrats made great gains. Schumer thought Democrats traditionally did a poor job of reaching "real" middle class voters (briefly defined here, at greater length here), and my update posited that that may be what is happening now, despite Democrats' legislative successes. For the record, Schumer has a new ad that illustrates the concept by going right at this "real" middle class: