Talk about an identity crisis for Scott Brown and Massachusetts voters. Scott Brown famously won election as the Republican senator from Massachusetts who promised to block President Obama’s controversial healthcare reform initiative. Now he’s running for re-election as the Republican senator from Massachusetts who supports Obama’s equally controversial recess appointment. Brown is edging left. Or, is he straddling center? He calls his recent political positioning a sign of independence. Democrats call it expedience. The ultimate definition will be up to voters.