Former Speaker of the House and longtime Trump supporter Newt Gingrich is seriously worried about the future of Donald Trump’s presidency.

Gingrich, who has consistently been one of Trump’s most optimistic supporters, said Friday morning that Trump is more isolated than he realizes and needs to make “serious changes” if he’s going to have a stable presidency.

“I think he’s in a position right now where he’s much more isolated than he realizes,” Gingrich said in an interview with Fox News’ Bill Hemmer. “On the Hill, he has far more people willing to sit to one side and not help him right now, and I think that he needs to recognize that he’s taken a good first step with bringing in General Kelly, but he needs to think about what has not worked. You don’t get down to 35 percent approval and have people in your own party shooting at you and conclude that everything’s going fine.”

“How many times have we had this conversation? It was John McCain, Gold Star families and Access Hollywood. Is this week that much different than the numerous other situations?” Hemmer asked. (RELATED: Trump Stories Or Terrorism? NBC Easily Decides What’s More Important)

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“It is only different in that you go through little ground, little ground, little ground, and after a while you have enough different people pull back that you are in a qualitatively different position and right now, that if he wants to get his agenda enacted that if he wants get things done and have a presidency that is stable, he is going to have to have a couple of serious changes,” Gingrich said. “I think ‘The Art of the Comeback,’ which is a fascinating book that he wrote in 1997, is a really helpful reminder and he needs to think of what hasn’t been working and what he will do that is more effective in the rest of the presidency.”

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