Democratic presidential candidate Bernie SandersBernard (Bernie) SandersTrump: ‘Clapper has now admitted there was spying on my campaign’ Overnight Defense: Trump decision on Korea summit coming 'next week' | China disinvited from major naval exercise | Senate sends VA reform bill to Trump Senate sends major VA reform bill to Trump's desk MORE said Sunday that Wall Street is influencing rival Hillary ClintonHillary Diane Rodham ClintonComey: Trump's 'Spygate' claims are made up Clapper: Trump distorting my comments is Orwellian Mueller probing Roger Stone's finances: report MORE with millions of dollars in campaign donations and speaking fees.

"Obviously, I don't think there's any debate," he said on "Fox News Sunday," in response to a question about whether Wall Street donations have influenced the former secretary of State.

"She's obviously not the only candidate out there," he said. "Many Republicans are raising huge amounts of money from Wall Street as well."

He added that every candidate says that the donations from Wall Street and the fossil fuel industry don't impact their decisions.

"Every candidate says that. Well the question that we ask: Is Wall Street and all of these other billionaires and wealthy individuals, are they really so dumb? Why are they contributing to much money?"

"I'll let the American people make that decision," he said.