A line of attack with legs?

It's a cliche that political attacks work only when they have some demonstrable relationship to reality -- when they touch a chord of genuine perception about a candidate.

By that standard, Obama campaign attack theme spotlighted today by Reuters would seem to have long-term potential:

"Feeding the Democrats' storyline: Romney's refusal to release more than a year or two of his tax returns, questions about whether he is being honest about when he left his job at Bain Capital, and the reams of records that have been kept secret from his years as Massachusetts governor and chief of the Salt Lake City Olympics."

Shucks, is that all? Methinks Reuters' Jeff Mason writes with a keen sense of the reality gap between this gambit and 2008's "who is Barack Obama?":