WASHINGTON (CBS/AP) — New Jersey Gov. Chris Christie is advancing the idea that President Donald Trump might not want to serve a second term.

Christie says on NBC’s “Today” show that four years is a long time, especially for someone who hasn’t spent a lifetime in politics.

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And so Christie says those years may affect Trump “differently” than they would a seasoned politician.

Christie was asked if he would support Trump for re-election. He said yes, but added that he is not sure a re-election campaign will happen.

“If he runs again I would support him, yes, but I’m not so sure what will happen. Four years is a long time and especially for someone who has not spent a lifetime in politics, so I think those years affect him differently,” said Christie. “I’m sure the president will make whatever decision is best for him, and his family and the country.”

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Trump already has an active re-election campaign that is raising millions and often talks about serving eight years. Christie ran for president but dropped out and endorsed Trump in February 2016 after a poor showing in New Hampshire.

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