Former Speaker Newt Gingrich (R-Ga.) on Monday said President TrumpDonald John TrumpThorny part of obstruction of justice is proving intent, that's a job for Congress Obama condemns attacks in Sri Lanka as 'an attack on humanity' Schiff rips Conway's 'display of alternative facts' on Russian election interference MORE should not concern himself with the opinions of staunch conservatives in the media like Ann Coulter when attempting to broker an immigration deal. 

"He should not pay any attention to Ann Coulter," Gingrich said on "Fox & Friends" when asked whether Trump should be worried about appeasing his more conservative supporters.

"Ann Coulter’s never run for office," he continued. "She doesn't know anything about how you put a majority together. She’s off here in some fantasy land where she gets to be noisy, which helps her sell books.

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"The fact is, the president’s base is with the president," Gingrich continued. "If he goes to them and says, 'I got this done for the wall, I got this done to protect America, I’m doing these good things you believe in,' the base is going to say, 'fine.' "

Trump took a swipe at Coulter in an interview with The Wall Street Journal published Sunday after she criticized his agreement to reopen the government without getting his $5 billion for a border wall.

“I hear she’s become very hostile,” Trump said. “Maybe I didn’t return her phone call or something.”

Coulter, a hard-line conservative who has at times criticized Trump for failing to build the wall along the U.S.-Mexico border, derided Trump as the "biggest wimp ever to serve as president" after he announced he would reopen the government for three weeks and end a 35-day standoff over border security funding.

Critics have argued Trump had caved to Democrats, who had for weeks staunchly opposed his demands for $5.7 billion to fund the wall.

A group of bipartisan lawmakers will negotiate for the next three weeks over border security funding. Trump has threatened he could shutter the government again or declare a national emergency to build the wall if they don't come to a deal to his liking.