The comments came after Trump had heated exchanges with both Ryan and CNN chief White House correspondent Jim Acosta on Wednesday. "She provided fraudulent accusations and cited an incident that never happened".
CNN released a statement affirming its support of Phillip.
The White House's actions and account of them has drawn widespread condemnation, particularly from journalists and news organizations. Why might other journalists in the room react that way, and why did Fox News's Chris Wallace say that Acosta had "embarrassed himself" on Wednesday?
Aides to Trump said he was most bothered by reporters who, in his view, speak to him in a belligerent manner, and that his willingness to take questions - he did so for about 25 minutes Friday - makes him more open to scrutiny than past presidents.
Ms Ryan, who is also a CNN contributor, tweeted in response: "I love this country and have the most respect for the Office of the President".
"The same thing with April Ryan, I watch her get up, I mean, you talk about somebody that's a loser, she doesn't know what the hell she's doing", Trump said. He started off his exchange with the president by saying that he will "challenge" Trump on his description of the migrant caravan. "You ask a lot of stupid questions", he said, shaking a finger at the journalist, then walking away.
"She's very nasty, and she shouldn't be", he said. "You run CNN, and if you did it well, your ratings would be much better".
Kimmel was surprised by Sanders' remarks, calling it "the first time I've seen Sarah Sanders take the woman's side on any subject ever".
The US president has also attacked the media for being "enemies of the people".
Alexander came to his colleague's defense. So am I but I want to preserve this for posterity because it's a great example of something the left-wing media does a lot, i.e. stampede in a certain direction (and let's face it, it's always the same direction) long before the facts are in. "He's a diligent reporter who busts his butt like the rest of us". "Pardon me ma'am", he said.
"President Trump believes in a free press and expects and welcomes tough questions of him and his Administration". He gets paid to do that ...
"What a stupid question that is", Trump responded.
CNN said Trump's attacks on the press have gone too far.
"They are not only risky, they are disturbingly un-American".
Earlier in the week, the White House seized Acosta's White House press credential, while Trump suggested on Friday that more reporters could lose theirs. She's the White House press secretary! On Friday the Boston Globe's editorial board called for a White House press walkout. "Some people saw that as emboldening white nationalists". As the Society of Professional Journalists warns, "injecting oneself into the story or creating news events for coverage is not objective reporting, and it ultimately calls into question the ability of a journalist to be independent, which can damage credibility".
He continued, "When you're in the White House, this is a very sacred place to me".
Alcindor moved on to a different topic. Ryan stood up and shouted a question during the November 8 press conference without being called on, interrupting the reporter who had been called on.
Trump told @Yamiche her question was "racist".