[5][6] His father, Frank Chambers, from Newport, County Mayo, is a consultant at the Mater Private Hospital, and was a political ally of Brian Lenihan Jnr.

Two weeks later, after Barry Cowen was sacked as Minister for Agriculture, Food and the Marine, Martin promoted Dara Calleary to replace Cowen, with Chambers succeeding Calleary as Government Chief Whip and Minister of State for Sport and the Gaeltacht.

[20] In December 2022, after Leo Varadkar became Taoiseach, Chambers was reassigned as Minister of State at the Department of Transport with special responsibility for International and Road Transport and Logistics and Minister of State at the Department of the Environment, Climate and Communications with special responsibility for Postal Policy.

[21] On 19 June 2024, Micheál Martin appointed Chambers as Fianna Fáil's deputy leader.

[22] On 26 June 2024, Chambers was appointed as Minister for Finance, succeeding Michael McGrath who was nominated by the government as Ireland's next European Commissioner.

[28] On 3 May 2018, he, along with several other Fianna Fáil TDs, called for a No vote in the referendum to remove the constitutional prohibition of abortion.

[29] He has since stated that his position has evolved and that he supports women being able to access terminations up to 12 weeks of pregnancy in all circumstances.