ROUGH CUT- NO REPORTER NARRATION<br/> <br />STORY: A tearful President Barack Obama expressed "overwhelming grief" on Friday for the victims of a shooting rampage at a Connecticut elementary school and called on Americans to set aside politics and "take meaningful action" to prevent more tragedies of this kind.<br/> <br />"Our hearts are broken today," Obama said, his voice breaking at times during a nationally televised appearance in the White House briefing room.
