 In 1948, partly due to its own increasing isolation and also due to a republican backlash against its anti-IRA policies (which during the Emergency had seen the execution of IRA prisoners – in part due to IRA links with the Nazis), which had produced a rival republican party, Clann na Poblachta, Fianna Fáil lost power.The First Inter-Party Government, made up of Fine Gael, the Labour Party, National Labour Party, Clann na Talmhan, Clann na Poblachta and others, was formed under Fine Gael TD John A. Costello.In opposition, Lemass played a crucial role in re-organising and streamlining Fianna Fáil.