Watch the latest video at &amp;amp;amp;lt;a href="//video.foxnews.com"&amp;amp;amp;gt;video.foxnews.com&amp;amp;amp;lt;/a&amp;amp;amp;gt;

Former Speaker Newt Gingrich said President Trump needs to make “serious changes” if he wants to have a stable presidency.

The Trump ally said in a Fox News interview with Bill Hemmer on Friday that Trump has taken a “good first step” by bringing in John Kelly as chief of staff, but that other changes are necessary.

"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," he said.

ADVERTISEMENT

Gingrich added that Trump is in a “qualitatively different position” now than when he endured previous controversies.

"If he wants to get his agenda enacted, 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 brought up Trump’s 1997 book “The Art of the Comeback,” adding that he needs to take his own advice and start thinking about “what hasn’t been working” with his presidency.

“I think he’s in a position right now where he’s much more isolated than he realizes,” Gingrich said.