Nigel Evans said Boris Johnson’s criticism of Donald Trump for tweets telling four US congresswomen to “go back” to where they came from will not impact the chances of a future trade deal with the US.
The Conservative MP said he doubts it would even be raised at any meeting between the two men, should Mr Johnson win the leadership race.
“They won’t even talk about it, I suspect they’ll go straight onto the issues that are of common concern,” he told talkRADIO's Alastair Stewart.
“That is Donald Trump wants to do a deal with the United Kingdom, Boris wants to do a deal with the United States of America.”
Both Mr Johnson and leadership rival Jeremy Hunt condemned the US president at last night's talkRADIO debate for a series of “offensive” tweets aimed at the four congresswomen.
WATCH: Boris Johnson and Jeremy Hunt condemn Trump's 'congresswomen' remarks
Mr Johnson said: “If you are the leader of a great multi-racial, multicultural society, you simply cannot use that kind of language about sending people back to where they came from.”
Mr Hunt said the remarks were “totally offensive”, however neither candidate would go as far as directly calling the remarks "racist".
Despite criticism of his tweets, the US president has insisted if the four congresswomen are unhappy with the country, they can leave.
On Twitter he wrote: “We will never be a Socialist or Communist country. IF YOU ARE NOT HAPPY HERE, YOU CAN LEAVE! It is your choice and your choice alone. This is about love for America. Certain people HATE our Country.”