Why should Wendy Davis's personal story matter?

Since then, Americans have similarly been enthralled by would-be Republican presidential candidate Herman Cain’s story about growing up in a “poor but happy” family to becoming a rich businessman, and Democratic Sen. Elizabeth Warren’s story of going from a working-class childhood to becoming a Harvard law professor.

Sure, we all love stories that affirm that America remains the land of opportunity, even for those who face hard times. But there’s no correlation between having an inspirational life story and having smart policy chops and political wisdom.

In fact, there should be concern about integrity when a politician makes up — or blurs — details about his or her life story.

Voters deserve some of the blame. Whether Democrat or Republican, voters seem inclined to select not just a preferred politician but also someone to idolize.