Aontú is holding its pre-Dáil think-in in Co Kildare with the State's treatment of children topping the agenda.
Leader Peadar Tóibín will call for greater accountability by the Government during his address to party colleagues and members.
"To Cherish All the Children of the Nation Equally" is the theme of the conference in Maynooth.
Opening proceedings, Senator Sarah O’Reilly will argue that children are not the priority of the coalition, pointing to problems at Children’s Health Ireland and Túsla as well the rising cost of living and homelessness.
Deputy Paul Lawless willspeak about housing in the context of what he calls the infrastructure disaster.
The Mayo TD will also discuss immigration - a major theme for Aontú - with the party arguing for comprehensive reform of the system.
Mr Tóibín will address delegates this evening and call for a practical approach to Irish unity, saying that if the administrations south and north plan, fund and deliver services together, it will be more efficient.
