Daily US Times: US President Joe Biden will later tell British Prime Minister Boris Johnson not to let the row over post-Brexit trading in Northern Ireland affect the peace process.
The two leaders will have their first face-to-face meeting in Cornwall at 15:00 BST on the eve of the G7 (Group of Seven) summit.
The US President will stress the need to “stand behind” the Northern Ireland protocol.
The two leaders will also discuss transatlantic travel and a new “Atlantic Charter” aimed at refreshing the relationship between the US and the UK.
Mr Biden is on his first overseas visit since being elected to the White House and the G7 summit is the first time world leaders have all gathered in person since the coronavirus pandemic began.
The rollout of the Covid-19 vaccination programme and climate change are high on their agenda.
But the ongoing dispute between the EU and the UK over regulatory checks on goods going into Northern Ireland from Great Britain is also likely to feature heavily in diplomatic discussions in the coming days.
President Biden has a close interest in Ireland, given his ancestral roots, and had warned that the Good Friday Agreement must not be jeopardised by rows over trade.
Political and business leaders in Northern Ireland have warned that the trade dispute is causing political angst and instability in the run up to the marching season next month, a historical flashpoint between nationalist and loyalist communities.
Northern Ireland was given special status as a result of the 2019 Brexit “divorce” settlement between the EU and the UK.
While England, Scotland and Wales no longer follow European Union rules, Northern Ireland still does, because it shares a land border with the Republic of Ireland, an EU member.
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