"Trump’s explosive and unverified claim that President Barack Obama wiretapped his New York skyscraper."
Fudge
In two of the three tweets that I was able to find, the tweet had the  "wiretapping" in quotes.  
I think that a better report might have been
"President Trump's claim that President Obama "wiretapped" his New York skyscraper".
The quotes generalize the claim to surveillance of some kind.