Speaking at a campaign rally in Fort Thompson, S.D., the former president said there has been a "frantic effort to push" his wife out of the race for the Democratic nomination, but asserted she "will win the general election if you nominate her," ABC News reported.

"They're just trying to make sure you don't." he said.

"And I have never seen anything like it. I have never seen a candidate treated so disrespectfully just for running."

He said many electoral map projections show his wife winning more electoral votes than Obama in a general election.

"If you notice, there hasn't been a lot of publicity on these polls I just told you about," Clinton said. "It is the first time you've heard it? Why do you think that is? Why do you think? Don't you think if the polls were the reverse and (Obama) was winning the Electoral College against Sen. McCain and Hillary was losing it, it would be blasted on every television station?"