A week ago they were competing for African-American votes in the Deep South. But late on Monday Hillary Clinton and Barack Obama went head to head for another key demographic group: Jewish voters. In one of the most important campaign stops yet, supporters from the Clinton and Obama camps, as well as other presidential hopefuls, flooded the hallways of the Washington Convention Centre distributing fliers and shouting through loudhailers in their bid to draw people in. Mr Obama made his pitch in room 150, and a few minutes later, in room 152, it was the turn of Mrs Clinton. Read more about Obama loses ground in vital campaign rally