The only feasible way to counteract such a strategy is through an appeal to universal values that resonate with all voters, regardless of how they might be demographically categorized for campaign targeting purposes. But the style of message delivery is just as important as the message itself. A candidate needs to connect on an emotional level with the people he's trying to reach, then explain how his values and ideas have led him to this point and will serve to raise everyone up if he's elected. This should flow without rehearsal and be on a candidate's tongue and in his heart at any given moment.
And if a candidate can't do that, then he needs to be able to fake it on an Academy Award-winning level. Because on Election Day, sometimes it's not just enough to represent one half of a choice -- even when polls give you the advantage. While it's true that you only need to beat the other guy to win, sometimes the other guy will still beat you, regardless of polling numbers, if he strikes that emotional chord better than you do and gets people motivated to sashay to the voting booth.
Romney now needs to focus entirely on connecting with people rather than on any policy documents, financial statements or numbers. Because regardless of what anyone thinks of the words coming out of Obama's mouth, it's clear that he either believes what he says or is a formidable performer -- or perhaps both.
Policy that resonates universally, delivered via emotional vector, will move voters on Election Day and decide the outcome of this race. Appealing to Americans on a universal, emotional level is the only way to trump the divisive and selective GOTV targeting by the left.