Gerry Adams says he will travel to the US for St Patrick's Day.
During a short 48-hour visit, the Sinn Féin President will meet Irish American leaders and politicians to discuss the North, Brexit and the issue of the undocumented Irish.
Mr Adams says the party is "very mindful that the Saint Patrick's Day celebrations are bigger than President Trump".
He also said it does not make sense for Irish leaders to exclude themselves from an opportunity to engage on critical issues.
Deputy Adams says he will also attend the Speakers' Lunch and an event in the White House, if he is invited.
Sinn Féin's Eoin O'Broin says its an important trip.
He said: "The choice for many of us, when you are faced with a president whose policies are abhorrent and bad both for Ireland and globally, is do you boycott and simply not engage, or do you engage to make your views on those issues clear, but also to raise other issues of big concern?"