VALPARAISO, Ind. - Senator Hillary Rodham Clinton managed to co-opt Mr. Obama’s message of hope and optimism, beginning a speech in Valparaiso, Ind., by talking about how positive and “fundamentally optimistic” Americans are. “We don’t get bogged down and looking back – we’re always looking forward,” she said, as heavy applause nearly drowned out her words. “Whatever obstacle we see, we get over it. Whatever challenge we have, we meet it. We’re the problem-solvers, we’re the innovators, we’re the people who make the better future.” For the third time since Mr. Obama’s remarks were made public Friday night, Mrs. Clinton...
