No he never has done that.
Not in the article linked
If you can find any link where he acknowledges this basic tenet of Christianity please post a link
I think he may have a few years ago (before the last Presidential election). Or at least, he claimed Him as his Savior.
It was a weird interview/pronouncement. You could tell that he was just mouthing the words as rote. His heart wasn't in it, and he didn't believe what he was saying.
But he had to get it out there for the contingent of his followers who claim to be Christians, to feel comforted for voting for an anti-Christ.
It was supposed to say he did not acknowledge Jesus, somehow the NOT disappeared.