Hillary Clinton has gained ground in the latest
CNN/ORC International poll, rising five points with Democrats nationally since earlier this month.
Clinton also gains considerably more points if Joe Biden is taken out of consideration.
And Biden's support comes almost entirely from Clinton's camp. Without the vice president in the race, Clinton's numbers climb by 15 percentage points, while Sanders' increase by only 4 points -- giving Clinton a nearly 2-to-1 lead at 57% to 28%, with O'Malley moving up to 2%.