Journalists on social media expressed their dismay when President Trump said, "I know you weren't thinking," to a female reporter at a Tuesday press conference.

During the event, focused on the newly minted trade deal with Mexico and Canada, ABC News' Cecilia Vega was called on and, while waiting for the microphone, Trump said that she was in a "state of shock" that he called on her.

“I’m not, thank you, Mr. President," Vega said.

"That’s OK. I know you’re not thinking, you never do," Trump replied.

The quip from Trump quickly drew ire from viewers.

Vega, an Emmy-winning broadcaster, was quick to comment on the transgression shortly after the conference saying that a news conference meant that reporters could ask "whatever question you want to ask. #FirstAmendment."

[Opinion: As a woman, white Republican men have been my greatest supporters]

Former Obama staffer and ABC TV writer Pat Cunnane said that Trump's insult and the smiles and laughs from the men behind him were just "who they are" and that they couldn't help themselves.

White House Playboy reporter Brian Karem noted a "disturbing" trend with female reporters.

Some, including the LA Times' Shashank Bengali, suggested Trump misheard, "I'm not, thank you," as, "I'm not thinking," and seized the opportunity to "insult" her.

Trump did have his defenders. Far-right media personality Jack Posobiec said the Left didn't care who Vega was, but instead were more interested in "weaponizing" her against Trump.

Vega was originally interrupting a string of trade questions to turn the focus onto Judge Brett Kavanaugh, but Trump refused to answer questions on his embattled Supreme Court nominee until later in the press conference.

This was not the only time Vega had drawn the ire of the administration. White House press secretary Sarah Sanders and Vega clashed in a heated exchange after Michael Cohen pleaded guilty to campaign finance violations.