As Donald Trump sat with some of the country’s top oil executives at his Mar-a-Lago Club last month, one executive complained about how they continued to face burdensome environmental regulations despite spending $400 million to lobby the Biden administration in the last year.

Trump’s response stunned several of the executives in the room overlooking the ocean: You all are wealthy enough, he said, that you should raise $1 billion to return me to the White House. At the dinner, he vowed to immediately reverse dozens of President Biden’s environmental rules and policies and stop new ones from being enacted, according to people with knowledge of the meeting, who spoke on the condition of anonymity to describe a private conversation.