Former President Jimmy Carter said four more years of President Donald Trump would be a “disaster” for the country.

Speaking at an Atlanta event for his namesake Carter Center, the 94-year-old said he has not decided who he will support for the White House in 2020, according to reports in the Atlanta Journal Constitution. Whoever it is, he would like to see them support the same things backed by his namesake Carter Center: ending wars, addressing global warming, human rights, working on treating people better and constructively criticizing the United States.

“If they do those things, I would probably vote for them. I don’t know who I will vote for, but I will vote for one of them,” Carter said. “I voted for Bernie (Sanders) the last time. But one of the major factors I have in my mind is who can beat Trump. Because I think it would be a disaster to have four more years of Trump.”

Carter’s wife, Rosalynn, agreed with her husband, saying she was concerned about the racial climate under Trump.

“I think we need a new president,” the former first lady said. “I am so disturbed about white power. He (Trump) says he is not a racist and maybe he is not. But some of the things he says, encourages racism.”

Carter’s comments weren’t the first time he’d criticized the Republican president, saying earlier Trump only won the White House because of Russian interference in the election. Trump responded by calling Carter a “forgotten president,” who while a “nice man” was a “terrible president.”