The US Secretary of State Mike Pompeo has welcomed the appointment of Mick Mulvaney to the role of US Special Envoy to Northern Ireland.
On Friday, US President Donald Trump announced that Mr Mulvaney, currently the acting White House Chief of Staff, would be taking up the position.
The role of Northern Ireland Envoy has been vacant since President Trump took office three years ago.
Secretary Pompeo praised Mick Mulvaney as an accomplished statesman and said the US remains fully committed to maintaining peace, prosperity, and stability in Northern Ireland.
"US Special Envoys have facilitated the negotiation and implementation of the Belfast/Good Friday Agreement, which had the main goal of bringing an end to violence, and ensuring self-determination, peace, and reconciliation," Mr Pompeo said.
"The United States welcomes the re-establishment of the devolved government in Northern Ireland after a three-year impasse and we look forward to meeting with many of the stakeholders this week in Washington."
Mike Pompeo said that the re-established government has a unique opportunity to increase trade and investment ties between the United States and Northern Ireland post Brexit.
"Special Envoy Mulvaney will draw from his experience to uphold US support for peace and prosperity in Northern Ireland while Northern Ireland and the United States address these challenges and opportunities," he said.
Mike Pompeo said that Mick Mulvaney has been deeply engaged in the Trump administration's policy in Northern Ireland, including a recent visit in February to Belfast, where he participated in a cross-community programme and met with community leaders, businesses, and government officials.
"His familiarity with the people and leaders in Belfast, London, and Dublin will be instrumental to ensure further progress in Northern Ireland. I look forward to his engagement as he does so with my full trust and confidence," Mr Pompeo said.