Hillary Clinton has engaged in “pay-to-play” activity with special interests vis-a-vis speaking fees, Libertarian presidential candidate Gary Johnson alleged Wednesday night.

The charge came in a CNN town hall hosted by Anderson Cooper, in response to the moderator’s question about whom Clinton is “beholden” to, as Johnson has previously stated.

“Bill Clinton and Hillary both are making huge amounts of money with these speaking fees. There are others that look at this, Anderson. I don’t want to throw rocks at this, but really it’s a pay-to-play,” Johnson stated.

Cooper responded with this follow-up question: “Beholden to big-money donors, beholden to Wall Street?”

“Well, their own interests, if you will, that they’re making money off of this. That they’re making money off of this. That as secretary of state, Bill goes out, does a million-dollar speaking gig and then the next day, Hillary signs an agreement with the sponsor of that speaking gig, and, you know, that’s not good,” Johnson responded.

“That’s beholden, if you want to say that. It smacks of pay-to-play. And I think it goes beyond just smacks of pay-to-play, that it is really something that’s out there.”

According to an analysis released this year by CNN, Bill and Hillary Clinton have raked in over $153 million in speaking fees since President Clinton left the White House in 2001.

Combined, the Clintons have given 729 paid speeches, at an average cost of $210,795 a pop.