- Joe Biden visits Ireland for the third time in seven years, the latest visit as President.
- Ireland has attracted eight serving American presidents since JFK in 1963.
- Electoral considerations and Irish roots have been a factor in attracting US presidents.
- Dublin's diplomats have played a part in reeling in successive American presidents.
- Donald Trump appears less keen to play up his links to Ireland.
Why do American presidents play up their Irishness?
Joe Biden is the latest in a long line to visit the old country | Europe
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