The Fianna Fáil Minister missed out on the final spot in Wicklow, with Fine Gael's Edward Timmins getting in instead.
Earlier on, Green Party TD Steven Matthews lost his seat after first being elected to the Dail in 2020.
12 seats are yet to be filled in the next Dáil, with counting complete in 38 of the 43 constituencies so far.
Counts in Louth, Cavan Monaghan, Tipperary North and Kildare North are continuing this morning, while a recount has been requested by a People Before Profit candidate in Cork North Central.
35 votes separate Mick Barry and Labour's Eoghan Kenny.
As it stands, Fianna Fáil are on 43 seats, followed by Fine Gael and Sinn Féin, who both have 36.
The Social Democrats have 11 seats, while Labour have 9.
The Green Party has just one elected TD, following leader Roderic O'Gorman's win in Dublin West yesterday afternoon.
