Obama's big disconnect By Salena Zito TRIBUNE-REVIEW For Barack Obama, closing the deal with Democrat voters has become like herding cats: He just can't get them all lined up and coordinated on his side. This nation has a history of looking closely at its candidates and taking their measure before they vote for them. It is a process that Obama shuns and rival Hillary Clinton thrives on -- and therein lies the problem for Democrats. Obama, who leads both in pledged delegates and in the popular vote, cannot close the gap with lunch-pail Democrats, older voters and (for lack of...