Daniel McCarthy was an Irish

Irish Free State

The Irish Free State was the state established as a Dominion on 6 December 1922 under the Anglo-Irish Treaty, signed by the British government and Irish representatives exactly twelve months beforehand...

 politician. McCarthy was first elected to Dáil Éireann

Dáil Éireann

Dáil Éireann is the lower house, but principal chamber, of the Oireachtas , which also includes the President of Ireland and Seanad Éireann . It is directly elected at least once in every five years under the system of proportional representation by means of the single transferable vote...

 as a Sinn Féin

Sinn Féin

Sinn Féin is a left wing, Irish republican political party in Ireland. The name is Irish for "ourselves" or "we ourselves", although it is frequently mistranslated as "ourselves alone". Originating in the Sinn Féin organisation founded in 1905 by Arthur Griffith, it took its current form in 1970...

 Teachta Dála

Teachta Dála

A Teachta Dála , usually abbreviated as TD in English, is a member of Dáil Éireann, the lower house of the Oireachtas . It is the equivalent of terms such as "Member of Parliament" or "deputy" used in other states. The official translation of the term is "Deputy to the Dáil", though a more literal...

 at the 1921 elections

Irish elections, 1921

Two elections in Ireland took place in 1921, as a result of the Government of Ireland Act 1920 to establish the House of Commons of Northern Ireland and the House of Commons of Southern Ireland. The election was used by Irish Republicans as the basis of membership of the Second Dáil...

 for the Dublin South

Dublin South (Dáil Éireann constituency)

Dublin South is a parliamentary constituency represented in Dáil Éireann, the lower house of the Irish parliament or Oireachtas. The constituency elects 5 deputies...

 constituency. He subsequently went on to support the Anglo-Irish Treaty

Anglo-Irish Treaty

The Anglo-Irish Treaty , officially called the Articles of Agreement for a Treaty Between Great Britain and Ireland, was a treaty between the Government of the United Kingdom of Great Britain and Ireland and representatives of the secessionist Irish Republic that concluded the Irish War of...

, becoming a member of Cumann na nGaedheal when the party was founded. McCarthy joined the government of W. T. Cosgrave as Parliamentary Secretary to the President

Minister of State at the Department of the Taoiseach

The Minister of State at the Department of the Taoiseach, officially styled as the Minister of State at the Departments of the Taoiseach and Defence with special responsibility as Government Chief Whip, is the Chief Whip of the Government of Ireland and is the most senior Minister of State...

 in 1922. He served in that post until 1924. He did not contest the June 1927 general election and subsequently retired from politics.