Reynolds said that "what Clinton wants to do is try to make her case to the superdelegates - the special delegates who are mostly party officials who are not beholden at this point to either candidate. They can choose who they support."
"Clinton is going to go to them now and say, 'Look, I'm winning in the big states - Pennsylvania, Ohio, California, New York. I'm winning in all these big popular states where Democrats have to win in the fall against the Republicans [in the US presidential election]'."
However, Reynolds said that Clinton's campaign had less money than Obama, casting doubt over whether she can continue a protracted battle against her rival.
"The campaign of Hillary Clinton at this point is in debt. She has not been able to raise as much money as Obama," Reynolds said.
"He had about $40m on hand at the end of March, which is when he had to report his funding to election officials. The Clinton campaign had about $9m on hand at that point, and about $10m in debts."