For many, new evidence confirming their hatred for Trump is fresh meat.Let’s give Senator Durbin the benefit of the doubt and say for argument sake that he sincerely but mistakenly remembers things his way. That means we have one person testifying that President Trump said something. But on the other hand we have testimony of the President Trump himself denying it. We also have an absence of corroboration from any of the other many people present. Such lack of evidence would make this charge to be laughed out of any court of law. But in the court of public opinion you can always find those that will fervently believe that which they already are predisposed and crave to believe, as we see happening in this case.
Just as I hear NPR misquoting Trump in ways which enhance their bias
that he's a vile racist, I'm sure they believe what they say.
What comes up far less often is the actual proposed change in immigration
policy, ie, basing it more on merit than family connection. This makes good
sense, but covering it as such goes against their bias against Trump, which
explains their ad hominem approach to news.