"(FILES) In this file photo taken on April 18, 2019 protesters against Brexit and the possible imposition of any hard border between Northern Ireland and Ireland gather with a banner at the border (marked where the tarmac changes and the lines change between white and yellow) between Derry (Londonderry) in Northern Ireland and County Donegal in the Republic of Ireland near the Irish village of Bridge End on April 18, 2019 ahead of a visit from the US speaker of the House of Representatives Nancy Pelosi. - An American trade pact with Britain is doomed if the latter's withdrawal from the EU undermines the Northern Ireland peace accord, US House Speaker Nancy Pelosi warned August 14, 29019. ""Whatever form it takes, Brexit cannot be allowed to imperil the Good Friday Agreement, including the seamless border between the Irish Republic and Northern Ireland,"" Pelosi, the top Democrat in Congress, said in a statement.""If Brexit undermines the Good Friday accord, there will be no chance of a US-UK trade agreement passing the Congress."" (Photo by PAUL FAITH / AFP)PAUL FAITH/AFP/Getty Images"
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