Moderate Democrats looking for their party to take back control of the U.S. House in November are offering an alternative to the economic populism message peddled by their more liberal counterparts. A new blueprint from the center-left New Democrat Coalition , shared exclusively with CNBC, lays out a road map for addressing affordability — top on voters' minds — without splashy populist promises. "Buzzy sounds good in a sound bite, but you often end up with unintended consequences or unworkable