The back-and-forth jabs between President Donald Trump and Speaker of the House Nancy Pelosi escalated yet another step on Wednesday, May 20.

This latest feud began on Monday when Pelosi—a Democrat representing California in the House—responded to news that the President was taking hydroxychloroquine against the advice of medical professionals.

She said that taking the drug was especially dangerous for someone like Trump who is "morbidly obese."

Pelosi pointed out her comments were relatively innocent compared to some comments from the President.

"I was only quoting what doctors had said about him. So I was only being factual, and in a very sympathetic way. I said he's our President, we don't want our President taking something that could be dangerous as the scientists said it could be. … again, a dose of his own medicine."

Yet, as anyone could have predicted, Trump responded in kind the next day, describing Pelosi as a "waste of time" and a "sick woman."

In a press briefing on Wednesday, Pelosi didn't hold back when she was asked to respond to the President's comments.

"You're asking me about the appropriateness of the actions of this president of the United States? So completely inappropriate in so many ways that it's almost a given."

"It's like a child who comes in with mud on their pants or something — that's the way it is, they're outside playing. He comes in with doggy doo on his shoes and everybody who works with him has that on their shoes, too, for a very long time to come."

She went on to worry that Trump's mental state was unstable.

"I hear doctors talk to me about saying, 'What's matter with him?' The things he says are so inappropriate for a president of the United States."

"There's a word somebody used to me. They said you would understand it better if you knew what a confabulator is — look up the word confabulator — someone who just really doesn't even know what the truth is. And just says anything. And because he says it, then he believes it."

The feud had many on Twitter putting their heads in their hands.

With Democrats having just passed a $3 trillion stimulus package through the House, the conflict between President Trump and Pelosi shows no sign of slowing down any time soon.