At the moment, it's sounding a lot like "he said, he said" in regards to the whole Comey saga. Trump was, apparently, a creep beyond all reason. Comey wrote about it, apparently, and of course those memos got out.
As Trump jets off to try to convince the rest of the world that he and his administration, despite all the "America First" slogans and attacks on Islam during the campaign, really do have the best interests of the rest of the world at heart ("Make America Great Again!")...while at the same time trying, somehow, to convince us that Comey has made it all up.
Problem is...well...his credibility is not the best. Okay, let's be honest, he lies like a rug. He lies like a dog. He lies like a...well...(there's more here if you're interested)
If I had money to spend, I'd bet on Trump lying about this too. It's his thing.