The US President hopes for a visit to take part in events on the 25th anniversary of the Good Friday Agreement, but these celebrations run the risk of being overshadowed by the dispute over the Brexit contract.
sources in Dublin confirmed that the US President would not come to the island of Ireland if Brussels and London had not made an agreement on the border with the Irish Lake.
There are fears that the loss of a coveted president of the president of Northern Ireland and Ireland could cost great potential amounts of money from US benefactors who are interested in investing in the peace process.
The warning comes after the Prime Minister Rishi Sunak and the President of the European Commission, Ursula von der Leyen, had had talks before the protocol negotiations are expected to be released in January.
"At the Northern Ireland protocol, they agreed that it is important to work together to find a solution," said a spokesman for the Downing Street.