EPA Administrator Scott Pruitt on Tuesday forcefully pushed back against criticism that he won a short-term sweetheart rental deal from a lobbyist friend, claiming it’s just the latest attempt by his and the president’s attackers to “resort to anything” to stop their agenda.

“There are people that have long in this town done business a different way and this agency has been the poster child of it. And so do I think that because we are leading on this agenda that there are some who want to keep that from happening? Absolutely. And do I think that they will resort to anything to achieve that? Yes,” he said in an interview with Secrets.

“It’s toxic here in that regard,” said Pruitt, one of a handful of President’s Trump’s agency heads who is scoring wins on his pro-jobs, anti-regulatory campaign.