Bernie Sanders Vows to 'Fight All the Way to Philadelphia' Convention

"The election is not over yet," he told "Good Morning America.”

— -- Despite indications it will be a strong day for opponent Hillary Clinton, Sen. Bernie Sanders said he believes his campaign will “do very well” in all five states voting today.

Sanders even talked about pulling off a miracle in the delegate-rich state of Pennsylvania.

“I think the reason, George, is our message is resonating,” he told ABC News’ George Stephanopoulos on "Good Morning America.”

“We’ve won 16 states already. I think we're got a chance to win some more today and out West where I think we have a very good chance to win the largest state in this country, California.”

Given the superdelegates who have pledged their support to Clinton, as of this morning, she would only need to win about 29 percent of the remaining delegates for the nomination. Sanders, however, dodged a question about whether he would give his unconditional support to Clinton should she get the votes.

“The election is not over yet,” Sanders said “We are here today competing in five states. We have ten more states to go after this.

“I'm going to give every person in this country the right to decide who is going to be president of the United States, what the agenda is of the Democratic Party. That's what our campaign is about, talking real issues, not process,” he continued.

Sanders’ again vowed to take his campaign, and his progressive agenda, all the way to the Democratic Party’s convention this summer. “We're going to fight all the way to the Philadelphia convention and we're going to win as many delegates as we can and we believe we do have a path toward victory,” he added.

Four of the five states voting today have closed primaries, which the Vermont senator again lamented, saying it “handicapped” his campaign.

Sanders has outperformed Clinton among independents who are only able to vote in states with open primaries.