Donald Trump has said he "brilliantly used" US tax laws to benefit his investors and staff.
The US presidential nominee is under pressure over claims he may have legally avoided paying federal tax for nearly two decades.
Meanwhile, the billionaire's Trump Foundation has been ordered to cease fundraising in New York by the state's attorney general.
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Taoiseach Enda Kenny is to bring a memo to cabinet this morning on Brexit.
It follows British Prime Minister Theresa May's weekend announcement of a clear timeline for the process.
The briefing being presented today is expected to cover trade between Ireland and the UK and issues in the north like a hard border and the peace process.
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The White House has said it has run out of patience with Russia and suspended contact with the Kremlin over Syria.
Tense relations sharply deteriorated yesterday when the US State Department announced that bilateral discussions were being stopped.
The move had been threatened last week by Secretary of State John Kerry, furious at repeated airstrikes on rebel-held areas of Aleppo.
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Angela Kerins' legal action against the Public Accounts Committee is due to resume before the High Court this morning.
The former Rehab CEO claims the committee acted outside its powers during a hearing she attended in February 2014.
Counsel for PAC believes the case being put forward by Ms Kerins seeks to extend the control of the courts over parliamentary proceedings in a wholly unprecedented way.
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The president of Colombia has announced fresh talks with Farc after a referendum on a deal failed to pass.
Government forces have been battling with the rebels for over five decades.
The two sides had reached an agreement last week, but voters opposed the move by a slim majority at the weekend.
