Hillary Clinton Hopes Sanders Will Round Up His Supporters for Her If She's the Nominee

— -- Hillary Clinton said she hopes Sen. Bernie Sanders will help persuade his supporters to come to her side if she becomes the Democratic nominee.

During an appearance today on "Good Morning America," Clinton reflected on the 2008 race when she dropped out before then-Sen. Barack Obama became the Democratic nominee.

"When I withdrew in June of 2008, polls were showing that at least 40 percent of my supporters weren't going to support President Obama," Clinton said.

She went on to say how she campaigned for her delegates to support Obama, going "from group to group, even as late as the convention."

"I'm hoping that the same thing will happen this time," she said.

When asked whether she would be calling on Sanders to drop out of the race, she said, "I would never tell anybody what to do. That has to be a very personal decision.”