West Cork TD Holly Cairns is poised to become the next leader of the Social Democrats.
Others TDs within the party have indicated they will back Ms Cairn’s bid ahead of the closing date for nominations on Wednesday.
Last week, the party’s co-leaders, Roisin Shortall and Catherine Murphy, announced they are to stand down.
The women said they had spent many months considering stepping aside, and had decided now was the right time to allow for their successor to “put their own print” on the party before an election.
After being the focus of some speculation in recent days, Ms Cairns announced on social media on Sunday that she will put herself forward to be the next leader of the Social Democrats.
Nominations will close at 12pm on Wednesday.
Wicklow TD Jennifer Whitmore said in a video message on Twitter that she backed Ms Cairns’ bid.
“I am delighted to hear that Holly is putting herself forward for the leadership of the Social Democrats and I’m here to say I’m putting my full support behind her, I think Holly would make an incredible leader for the party and I’m looking forward to the next chapter,” she said.
Dublin Bay TD Cian O’Callaghan has also thrown his weight behind Ms Cairns, ruling himself out of running for leader.
He told Newstalk Radio: “I’m delighted to be backing Holly, she has my 100% support.
“I’ve a huge amount of time and respect for her, she is someone who is relatively new into politics, was elected first time to the council in Cork about four years ago, but already in that short time has made a huge impact in politics, and I think will do.
“So I’m really happy that she is running.”
Dublin Central TD Gary Gannon previously ruled himself out.
The Social Democrats have six TDs in the Dail, and garnered around 2.9% of first preference votes in the 2020 general election.
They won a similar amount of first preference votes in the local elections.
The latest opinion polls put the party at around 4%.