Barack Obama returns to convention stage to make case for Hillary Clinton
President Barack Obama acknowledged Wednesday that his hopes for a new tone in politics, embodied in the rousing Democratic convention speech he delivered 12 years ago, never materialized. Still, he says he remains undaunted. In 2004, he was the obscure Senate candidate from Illinois whose words catapulted him to the center of American political consciousness. On Wednesday night, he steps on the convention stage as the battle-hardened president hoping his legacy won’t be eroded by the outcome of the election…