Washington DC - President Donald Trump launched his latest insult-laden rant against a female journalist with a post furiously defending his sprawling White House ballroom project.

Twice misspelling CNN journalist Kaitlan Collins' name in a rambling Truth Social post, Trump called her "always Stupid and Nasty" for supposedly questioning the ballooning cost of his vanity project.

"I said because it is going to be double the size, and the quality of finishes and interiors has been brought to the highest level," he wrote.

Collins doesn't seem to have directly asked the president about the ballroom recently, although she did present a short CNN segment about the ongoing construction on Friday.

Claiming the ballroom would be "much bigger and more beautiful than originally planned," Trump insisted it was being "fully paid for by private donations." In October, the 79-year-old admitted that the initial cost estimate of $200 million would rise by another $100 million.

The hugely controversial project has also been marred by disagreements between Trump and the architect first brought on to lead it. On Thursday, the White House told CNN a new architecture firm, Shalom Baranes Associates, was brought on to replace McCrery Architects, with whom the Republican clashed over the planned size of the ballroom.

It's also not the first time Trump has hurled personal insults at female reporters, with recent lowlights including calling journalist "piggy" aboard Air Force One and aggressively asking another whether she was "a stupid person."