He made the apology at the party's think-in.
The Tánaiste has apologised to his party over the controversy surrounding the attempted appointment of Katherine Zappone as a UN Special Envoy.
The imminent motion of no-confidence in Foreign Affairs Minister Simon Coveney is overshadowing the Fine Gael think-in in Co Meath.
Our Political Correspondent Seán Defoe reports from Trim
The Tánaiste and Foreign Affairs Minister, Simon Coveney, apologised to their party this morning
:

Minister Martin Heydon Speaks As Fuel Scheme Announced
Sallins Man Part Of Intercepted Global Sumud Flotilla
One In Seven Households Unable To Afford Adequate Home Heating
Fifth Arrest Made In Connection With Fatal Edenderry Fire
Two People, Including A Teenage Boy, Arrested After Gun Incident In Ballymun
Man Charged With Fatal Assault Of Woman In Waterford
Fuel Support Scheme Announced, With Payments To Some Sectors Expected By June
Pedestrian In His 80s Dies After Being Struck By Car In Longford