Secretary of Defense James Mattis James Norman MattisBiden courts veterans amid fallout from Trump military controversies Trump says he wanted to take out Syria's Assad but Mattis opposed it Gary Cohn: 'I haven't made up my mind' on vote for president in November MORE on Saturday said President Trump Donald John TrumpObama calls on Senate not to fill Ginsburg's vacancy until after election Planned Parenthood: 'The fate of our rights' depends on Ginsburg replacement Progressive group to spend M in ad campaign on Supreme Court vacancy MORE is “wide open” on the issue of climate change.

“The president was open,” Mattis said of recent climate change conversations in Brussels.

Speaking to CBS’s “Face the Nation” in a pre-taped segment, Mattis said he took part in policy discussions about climate change and the Paris agreement in Brussels during the recent North Atlantic Treaty Organization (NATO) summit.

“He was curious about why others were in the position they were in, his counterparts in other nations. And I’m quite certain the president is wide open on this issue and he takes in the pros and cons of that accord," he said.

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Mattis’ comments come as the Trump administration weighs its commitment to the Paris accord, which was signed during the Obama administration.

Trump, during the Group of 7 (G7) summit this week in Sicily, Italy, was the only leader within the group of nations not to recommit to the accord.

Mattis in the interview noted that the Defense Department deals with climate change issues, but that the decision on the accord is not in his wheelhouse.

“And I, frankly, it’s not inside my portfolio, that aspect. Obviously we deal with the aspects of a warming climate in the Department of Defense," he demurred.

The president early Saturday said he will make his decision about the deal next week.