Democratic presidential candidate Bernie SandersBernard (Bernie) SandersNewsom endorses Kamala Harris for president Business, conservative groups slam Trump’s national emergency declaration Poll: Sanders, Biden seen as most popular second choices in Dem primary MORE said Sunday that Wall Street is influencing rival Hillary ClintonHillary Diane Rodham ClintonOvernight Defense: Trump declares border emergency | .6B in military construction funds to be used for wall | Trump believes Obama would have started war with North Korea | Pentagon delivers aid for Venezuelan migrants Sarah Sanders says she was interviewed by Mueller's office Trump: I believe Obama would have gone to war with North Korea 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.