Erstwhile Trump supporter and right-wing firebrand Ann Coulter unleashed a long torrent of tweets criticizing President Trump over his tax cut speech Wednesday.

"WTF! Why is [President Trump] back to tax cuts? His election was NOT about tax cuts. Has he been talking to [Speaker Paul Ryan] again?" she tweeted.

Trump said in his speech that he would seek a historic tax cut in order to boost economic output and employment. He offered few details, and instead put it in the hands of Congress to put a bill before him to sign.

"So, this is our once-in-a-generation opportunity to deliver real tax reform for everyday, hard working Americans. And I am fully committed to working with Congress to get this job done," Trump said at a speech in Missouri.

"And I don't want to be disappointed by Congress," he warned. "Do you understand me?"

Coulter was less than enthused about the tax cut push, saying that immigration reform was much more important to his agenda and his base.

"Bush cut taxes! Did it create millions of jobs? Nope. The rich pocketed their tax cut [and] sent jobs abroad, hired guest workers," she tweeted. "F-- them."

"Tax cuts are a 2d term issue," she continued. "1st term: BUILD THE WALL, End DACA, Deport Illegals, No Refugees, No Muslims, [Immigration] Moratorium. SAVE USA!"

"This speech could have been given by Jeb!" She continued, "except even he wouldn't have talked about the [government] helping yuppie women with child care costs."

"Oh stop pretending this is about letting 'families' keep more of their money. HALF OF AMERICANS DON'T PAY TAXES! This is for Wall Street," she concluded, citing a well worn statistic of the percentage of Americans who pay federal taxes.

Coulter, who wrote a pro-Trump book entitled, "In Trump We Trust," also criticized the president for his speech on Afghanistan, and has been pushing relentlessly for him to fulfill his campaign promises on immigration reform.