Reading is fundamental...
"That's not an apology or promise to change, it's the way it's always been."
To restate, he did not "refuse to apologize", he clearly stated he was not apologizing. He has no reason to apologize. No person was likely to mistake his statement as an apology, but he saw fit to make that point crystal clear.
In plain English, that says he is not apologizing to anybody for making campaign contributions to Republican candidates.
To restate, he did not “refuse to apologize”, he clearly stated he was not apologizing.
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"Refuse to apologize " and "not apologizing " are one and the same thing.