Mr Trump was questioned about his 2020 U.S. election loss. But he says Morgan is “dishonest” and “a fool”.
“I think I’m a very honest man, much more honest than you, actually,” Trump says.
The interview was a first for Morgan, who is launching his new TV show, ‘Uncensored’.
The controversial host tells Trump the election was “free and fair”, and there is evidence to show he lost the election.
The are reports Morgan will be paid £50 million over three years to host the daily talk show.
The 75-minute program will air on Monday.