Ambassador to the United Kingdom Jane Hartley greet U.S. President Joe Biden next to Joe Kennedy upon Biden's arrival at RAF Aldergrove airbase in County Antrim, Northern Ireland April 11, 2023. Ahern said he knew from experience that "knocking heads together" did not usually work in Northern Ireland and that Biden should point out the obvious case that, in any democracy, institutions of parliament were essential. Biden will travel later on Wednesday to County Louth - midway between Belfast and Dublin - where his great-grandfather was born. Biden will meet relatives from another side of his family in the western county of Mayo on Friday. Writing by Padraic Halpin; Additional reporting by Conor Humphries; Editing by Peter Graff and Alex RichardsonOur Standards: The Thomson Reuters Trust Principles.

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