Trump later elaborated on his answer, without actually saying if he is running.
“It’s not that I want to,” Trump said.
“The country needs it.

We have to take care of this country.
It isn’t fun, fighting constantly, fighting always,” (viaNewsweek).
However, in 2016, Trump lost that caucus to Ted Cruz (viaThe New York Times).

“We’re doing some more,” he said.
“We’re going to Iowa.
We’re going to Georgia.
We’re going to some others,” (viaUSA Today).