East Belfast MP Gavin Robinson has expressed his “full support” for fellow MP Sir Jeffrey Donaldson to become the next leader of the DUP.

Earlier Sir Jeffrey confirmed he would be running against MLA Edwin Poots to replace Arlene Foster.

Mr Robinson tweeted: “I’m delighted Sir Jeffrey Donaldson has announced he intends to stand as DUP party leader and as the leader of Unionism on this our Centenary day.

“As I discuss our vision for the future in the coming days with colleagues, he will have my full support.”

Sir Jeffrey announced his leadership bid at Mr Robinson’s constituency office in east Belfast on Monday morning, coinciding with the date viewed by many historians as the centenary of the creation of Northern Ireland.

Sir Jeffrey, the longstanding Lagan Valley MP said he would promote a positive strategy and values if elected, with a focus on building a shared future for everyone in Northern Ireland.

The party’s current Westminster leader also pledged meaningful reform within the DUP and said he would set clear policy directions on key challenges for unionism, such as Brexit’s contentious Northern Ireland Protocol.

His entry in the race to succeed the deposed Arlene Foster will mean the DUP is set for its first-ever leadership contest in its 50-year history.

- @J_Donaldson_MP launches his bid for the DUP leadership.

Begins with tribute to Arlene Foster.

Promises to promote positive strategy and values and work to create shared future in NI.

Pledges programme of reform within the DUP and clear policy direction on NI Protocol.@PA pic.twitter.com/DZRmOXHyzZ

— David Young (@DavidYoungPA) May 3, 2021

“I want to thank Arlene Foster for her service to our party, people and country,” he said.

“She led with great courage, conviction and a big heart for Northern Ireland. I wish Arlene and her family well for the future.

“Today, Northern Ireland enters its second century.

“I am convinced that in this new century, Northern Ireland’s best days are ahead of us.

“We want to build a shared future for Northern Ireland where everyone, regardless of their background, has a part to play in showing the world what we are truly capable of.

“Both making our full contribution, and enjoying the benefits, of being part of the United Kingdom.”

Sir Jeffrey will be seen as the moderate candidate against the more hard-line Mr Poots, who also represents the Lagan Valley constituency, as an Assembly member.

Mrs Foster resigned last week after an internal revolt against her leadership.

The move came in the form of a letter of no confidence signed by a majority of the party’s senior elected representatives.

Mr Poots, understood to have been one of the key figures behind the heave against her, announced his leadership bid within 24 hours of Mrs Foster’s resignation statement.

The outgoing DUP leader will step down from that role on May 28, and as Stormont First Minister at the end of June.

A small electorate, comprising just the party’s MLAs and MPs, will decide the leadership contest.

Making his pitch for the job, Sir Jeffrey added: “Our next century will be built on the politics of persuasion.

“This will need positive leadership, strategy and values. Strong. United. Focused.

“This will also require party structures capable of communicating clearly and consistently to appeal to voters; capable of working with a strong and growing team built around real partnership between representatives in our local councils, the Assembly and at Westminster; and capable of overcoming those that seek to abolish Northern Ireland.

“I will develop and swiftly implement an agreed programme of meaningful reform and clear policy direction on key challenges like the protocol.

“Our task is to not only make the case for the Union but to strengthen that Union in the years ahead.

“Our previous leaders have shown that when the DUP leads, Northern Ireland moves forward.

“We are not only elected members of a political party, we are the custodians of the Union.

“Let us take our next steps forward. Forward to a new century.”

On Sunday it emerged that Mr Poots would not take on the First Minister’s job if he was elected DUP leader, instead appointing an Assembly colleague to the role as he concentrates on the leadership.

If Sir Jeffrey won the leadership and remained as an MP at Westminster, he would not be able take up the First Minister’s job.