Elizabeth Warren: I'm 'troubled' by Obama's $400,000 speaking fee for healthcare conference

The Massachusetts senator made the comments while promoting her new book.

"I was troubled by that," the Massachusetts senator said Thursday during an interview with the SiriusXM show "Alter Family Politics" on Radio Andy.

She then proceeded to discuss her disdain for "the influence of money" in the nation's capital.

"One of the things I talk about in the book ["This Fight is Our Fight"] is the influence of money," she said. "I describe it as a snake that slithers through Washington. And that it shows up in so many different ways here in Washington. People understand the money that goes into campaign contributions. And when I say 'understand.' I don't mean they think it's okay, but at least people see it. The money that goes into hiring lobbyists, but it's also the money that goes into bought-and-paid-for experts, the money that goes into think tanks that have these shadowy funders."

ABC News confirmed Obama's six-figure speaking fee for the Wall Street conference with his office. It was first reported by Fox Business.

"As we announced months ago, President Obama will deliver speeches from time to time," Obama spokesman Eric Schultz told ABC News. "Some of those speeches will be paid, some will be unpaid, and regardless of venue or sponsor, President Obama will be true to his values, his vision, and his record."

And specifically addressing the Wall Street conference, Schultz continued, "He recently accepted an invitation to speak at a health care conference in September, because, as a President who successfully passed health insurance reform, it's an issue of great importance to him. With regard to this or any speech involving Wall Street sponsors, I'd just point out that in 2008, Barack Obama raised more money from Wall Street than any candidate in history -– and still went on to successfully pass and implement the toughest reforms on Wall Street since FDR."