As more clashes with reporters followed, Trump, exasperated but energised, summed up what is sure to be repeated at the rallies where chants of "CNN sucks!" have become a favorite chorus. "To be honest. You aren't the best", he hit back.
"Since you're attacking us, can you give us a question?"
"To say that, what you said, is so insulting to me", he said. And a boycott or blackout not only runs counter to the core idea that the reporters are there to inform the public, but it also would cede the briefings to the worst Trump sycophants.
The journalist formerly worked as CNN's world political reporter, and covered the Obama administration while Barack Obama served as President.
That brought Acosta to his feet again.
"There's 800,000 people that will be affected, and he couldn't deliver the news himself?" the journalist said.
The move to punish Acosta by removing his access to the White House is believed to be unprecedented.
"Journalists may use a range of approaches to carry out their jobs and the WHCA does not police the tone or frequency of the questions its members ask of powerful senior government officials, including the president", the group wrote. "Do you think they were actors?" He called the White House accusations "a lie". "Should they worry about what is going to happen to them, sir?".
Looking back at Acosta, Trump added: "The way you treat [press secretary] Sarah Huckabee is terrible, and the way you treat other people is frightful".
When asked if it began with him, the president replied: "I do have the right to fight back".
I have posed the question to Sarah Sanders, why - why was Patrick Casey here, and what - who was he meeting with?
As the reporter continued, Trump declared: "That´s enough, put down the mic" and walked away from his own podium, as if leaving.
But some journalists are anxious about the way he has inserted himself into the story and that his confrontational style may just be feeding Trump's accusations that the media is unfair. "I know he's just doing his job". "'What role did you play?'"
"He covered both of President Barack Obama's inaugurations and contributed to the network's mid-term election coverage".
Acosta told Trump that he disagreed with the president characterizing the migrant caravan heading through Mexico the United States as "an invasion".
"CNN should be ashamed of themselves, having you work for them", he said. "You shouldn't be working for CNN".
Mr Acosta tweeted that he had been denied entrance to the White House by the Secret Service when he went in for an 8pm hit. "You are a rude, awful person, you shouldn't be working for CNN".
Defending it chief White House correspondent Jim Acosta, the CNN said the decision is "a threat to democracy". The way you treat Sarah Sanders is frightful. However, as noted by Acosta and many others, the people travelling within the "caravan" are still hundreds of miles from the U.S. "You shouldn't treat people like that". After delivering prepared remarks, he fielded questions from reporters for almost 90 minutes on Wednesday, asserting the results marked a win for the GOP, defending his impact, and expressing eagerness to work on bipartisan legislation with House Democrats.