In an interview with the Good Morning Britain television program, Trump was pressed by Piers Morgan, the presenter, about his November retweet of three videos by a far-right fringe party called Britain First.
In an interview with Piers Morgan - who is friends with the president - Trump said he did not want to cause "any difficulty" for the United Kingdom but stopped short of directly saying sorry. I know nothing about them. "Certainly, I wasn't endorsing anybody", he added.
"Perhaps it was a big story in Britain, perhaps it was a big story in the UK, but in the United States it wasn't a big story".
"Well that goes without saying, I would do the same if somebody told me and could evidence that someone was a terrible nasty racist then I would have the same feelings about them".
When asked about people who are against his visit, Mr Trump said: "I don't care".
"It was done because I am a big believer in fight radical Islamic terror. This was a depiction of radical Islamic terror", he said.
British Prime Minister Theresa May had also denounced the president endorsement of those Islamophobic videos. Fransen claimed the videos showed an Islamist gang beating a teenage boy to death, a Muslim destroying a Christian statue, and a Muslim migrant beating a Dutch boy on crutches.
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"I support her, I support a lot of what she does and a lot of what she says and I support you militarily very much".
In order to soften things up with one of America's closest allies, Trump did a sit-down interview with a friend of his, the equally loathed British TV host Piers Morgan.
Trump's retweets of the videos posted by Fransen sparked global outrage.
When Morgan then helpfully handed Trump his next line, "And you would disavow yourself of people like that", Trump returned again to his main point.
Trump and May met at the Forum on Thursday as the president dismissed reports that there was a strain on their relationship.
'The reality is, he has apologised and he has said, I didn't know who these people were'. But he didn't actually apologize or actually disavow Britain First because, he maintained, he simply doesn't know enough about the group to make his own judgment. The full interview will be broadcast Sunday, January 28.