Nicole Gaudiano

USA TODAY

Sen. Bernie Sanders said Hillary Clinton hasn’t shown courage in standing up to Wall Street power.

The Democratic presidential candidate, during a Wednesday interview on MSNBC's Morning Joe, said America needs a president to stand up to the “billionaire class” and Wall Street.

“Do I think Hillary Clinton or many other senators have shown the courage that is necessary to stand up to Wall Street power? The answer is no,” he said.

He said he's running for president because he doesn't think Clinton has that courage.

Sanders’ comments came a day after he delivered a major address on Wall Street reform in Manhattan. He proposed breaking up the biggest banks and reinstating the Glass-Steagall financial law that separated commercial and investment banking activities.

Clinton argues her plan is tougher because it would address risky behavior in the shadow banking sector. She has not endorsed reinstating Glass-Steagall, a progressive priority.

"With respect to my opponent, who is a friend of mine, I think I have a broader, more comprehensive set of policies about everything, including taking on Wall Street," Clinton said Tuesday of Sanders during an town hall meeting in Sioux City, Iowa. "I want to go after everybody who poses a risk to our financial system."

Sanders, during the Morning Joe interview, also agreed with host Joe Scarborough that Clinton has been “flip-flopping” over the years on whether she is a moderate or progressive and on issues such as trade and the Keystone XL pipeline.

“I have been fairly consistent my entire political life,” he said. “Some people say I'm kind of boring because I have been saying the same thing for 30 years.”