We would not be commenting here on last week’s news story about the failure of Democratic candidate for county judge, Ruben Becerra, to pay his taxes – except that Mr. Becerra and his family seem determined to keep the story alive.

Rather than explaining himself, or paying his taxes (or just keeping quiet and letting the campaign move on), Mr. Becerra – or at least his campaign, and sometimes family members speaking as surrogates – is aggressively on the attack against th...