According to Yahoo News, conservative firebrand Ann Coulter called Donald Trump “lazy and incompetent,” and said he could potentially face a Republican primary challenger in 2020 if he doesn’t build a wall along the southern border.

“We put this lunatic in the White House for one reason,” Coulter told Yahoo News.

“He doesn’t need to declare an emergency.”

Coulter went on to claim how Trump could use his powers to make the Department of Defense and Homeland Security build the wall without congressional approval. “I think [Trump is] finally going to pull that pocket Constitution out of his lapel pocket and [say], ‘Oh my gosh, I’m the president. This is great.’”

When asked who she could see challenging Trump in 2020, Coulter said a “terrific” candidate would be Rep. Mo Brooks who recently claimed Democrats would have “American blood” on their hands if they blocked the wall from being built.

Coulter wouldn’t say if she has recently spoken to the president, but did tell Yahoo News that Trump was still “reading” her. “I can tell. … Well, somebody’s reading me. They’re all reading me over there,” she said.

In addition to the threat to bolster an even more right-wing alternative to Trump in 2020, Coulter’s suggestion that she believes Trump is a lunatic is particularly telling and galling. The usual story the media tells about Trump supporters is that they’re so enamored of his style and priorities in politics that they don’t see his obvious flaws. But to admit that you see Trump as a “lunatic” but still fought passionately for his election, solely because of his views on immigration, is truly horrifying.

No reasonable and non-bigoted assessment of immigration should see it as anything like the threat Coulter imagines it to be, but even if you thought immigration was very bad, how could it possibly be worse than putting a “lunatic” in charge of the American nuclear arsenal and military?