Progressive strategist Brent Cohen said Monday that he thinks President Trump Donald John TrumpOmar fires back at Trump over rally remarks: 'This is my country' Pelosi: Trump hurrying to fill SCOTUS seat so he can repeal ObamaCare Trump mocks Biden appearance, mask use ahead of first debate MORE and conservative commentator Ann Coulter “deserve each other,” in response to the ongoing feud between the two former allies.

“Ann Coulter, Donald Trump deserve each other,” Cohen, an executive director at Generation Progress, said during a panel discussion on “Rising.”

“When you push conspiracy theories and then you come up with policies that can’t be put into place to address those conspiracy theories, like Mexico will pay for this border wall, and then you actually have to deliver through governing, this is where you end up,” he continued.

Cohen added that Trump using Twitter to name-call people alone should "give us pause."

“First of all let’s just reflect on the fact that we have a president whose using Twitter to call people ‘wacky nut job’ — that in and of itself should give us pause," he said.

Cohen’s comments come after Trump hit back at Coulter over the weekend, calling her a “wacky nut job.” The president also insisted that he was "winning" at the border.

“Wacky Nut Job @AnnCoulter, who still hasn’t figured out that, despite all odds and an entire Democrat Party of Far Left Radicals against me (not to mention certain Republicans who are sadly unwilling to fight), I am winning on the Border,” Trump tweeted on Saturday. “Major sections of Wall are being built."

Coulter was an early advocate for Trump, but she has since become critical of the president after he ended the government shutdown by signing an agreement that provided significantly less money for border security than what he initially asked for to build the wall.

Trump’s national emergency declaration in February only sparked more barbs from the conservative commentator.

“The only national emergency is that our president is an idiot,” she said told KACB’s Morning Drive show at the time.

Trump, meanwhile, doesn't appear to be giving up on his long-promised border wall.

The president on Monday proposed a 2020 budget to Congress, which seeks to increase defense spending to $750 billion and allocate $8.6 billion to fund his proposed wall along the southern border. But the vice chairman of the Senate Appropriations Committee, Sen. Patrick Leahy Patrick Joseph LeahyBattle over timing complicates Democratic shutdown strategy Hillicon Valley: Russia 'amplifying' concerns around mail-in voting to undermine election | Facebook and Twitter take steps to limit Trump remarks on voting | Facebook to block political ads ahead of election Top Democrats press Trump to sanction Russian individuals over 2020 election interference efforts MORE (D-Vt.), promptly rejected Trump's budget proposal, saying it was "dead on arrival."

— Tess Bonn