Mr President, meet the president
Typical, isn't it? You wait 39 years for one controversial head of state to come and then two of them come along at once. Though Donald will be hoping that he does a better job of "cementing the historic ties between our two great nations" than poor Pope Francis did.
Donald's aides have no doubt already told him that if Katherine Zappone tries to sidle up to him for a word in his ear, he should run a mile. And presumably Leo's aides have already told him that if he tries to tell Trumpy a few home truths at the formal welcome, Donald will not take it in the same spirit of brooding humility that Francis did. It'll be all Lyin' Leo, fake news and enemy of the people.
Of course one of the many unknowns about the Trump visit is that we don't know who exactly will be in charge by the time he gets here. It could be an admirer of Castro and Chavez, who protested practically every US presidential visit to Ireland before he became a president himself. Or equally it could be a black Irishman who seems to share some of Trump's views on immigration. That should confuse The Donald.