The Irish government said Tuesday that the visit announced in August had been "postponed due to scheduling reasons", the BBC reports.
Mr Martin, the Fianna Fáil leader, described the postponement as "unedifying" for the government and called for relations with the United States to be mended. The delegation of the White house were to visit Ireland in the coming weeks to plan the trip, but her visit was canceled.
His office later said it was still possible Mr Trump will take up Mr Varadkar's invitation at a future date, but confirmed November's trip will not be happening. Trump was originally meant to visit Colombia in April but scrapped the trip to remain in Washington and oversee military strikes in Syria.
Brendan Howlin, leader of the Labour Party in the Republic, said Mr Trump was "no friend of democracy or human rights".
Neither Trump nor the White House has commented on the possible cancellation.
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Among the attendees were Hassan and Hussain Nawaz, Shehbaz Sharif, PML-N leaders Chaudhry Nisar and Muhammad Ishaq Dar. The Saudi envoy for offered condolences to Nawaz Sharif on the demise of former First Lady Begum Kulsoom Nawaz.
Mr Trump was due to stopover in Ireland on his way home from Armistice Day commemorations in France on November 11.
Trump was expected to visit Dublin and his Dooberg golf resort in County Clare during his now-in-question visit.
Mr Varadkar admitted at the time the president's decision to come to Ireland "came a little bit out of the blue".
From there, Trump was also planning to make the journey to Ireland to renew the deep and historic ties between the two nations.
It was to be his first visit to the country since becoming president in 2016.
Mr Martin said the whole episode had been "a very unedifying experience".