That was not the opinion Trump has given about them.
On Biden, from the article above:
“When you ask a question and then you see him read the answer off the teleprompter. That means he knows what’s going on. He’ll call—let’s see, they told me to ask so-and-so, to ask a question. It’s so sad for our country,” Trump said.
On Hillary Clinton:
“I don’t use teleprompters,” he said in January, criticizing Hillary Clinton for using one. “Wouldn’t that be easy, teleprompters? I watched Hillary the other day and she has the biggest teleprompters I’ve ever seen. In fact, if you’re sitting on that side of the room or that side of the room you can’t see her because when they are outside, they are painted black and you can’t even see her.”
You shouldn’t be allowed because you don’t know what you’re going to get. Look what happened with Obama who is a teleprompter guy. No, it’s true… […] You don’t want a scripted president.
“I’ve always said, if you run for president, you shouldn’t be allowed to use teleprompters,” Donald Trump said to applause at a rally last October in Georgia. “Because you don’t even know if the guy’s smart.”
“These other guys, they’re going around, they make a speech in front of 21 people. Nobody cares, they read the same speech…They have teleprompters,” Trump said at a campaign rally in August 2015. “I say we should outlaw teleprompters … for anybody running for president.”
“I say we should outlaw teleprompters for anybody, right? For anybody running for president. Do you know how easy that would be? Instead of this. I’m working my a-- off, OK?” he said at an Aug. 25 Iowa speech.
That was not the opinion Trump has given about them.
On Biden, from the article above:
On Hillary Clinton:
https://www.cnn.com/2016/03/21/politics/trump-teleprompter-aipac-speech/index.html
On Obama:
https://www.c-span.org/video/?327605-1/presidential-candidate-donald-trump-campaign-rally-hampton-hampshire
On running for president in general:
https://www.presenting-yourself.com/teleprompters-can-be-a-speakers-best-friend/
Which he has said more than once:
https://www.politico.com/story/2016/06/donald-trump-teleprompter-224039
In fact, he said it at least three times:
https://abcnews.go.com/Politics/donald-trumps-begrudging-teleprompters/story?id=39696587
TIL, that’s very ironic, I guess we may have been at the presence of a teleprompter revenge.
The only teleprompter warning he’s gonna get