Treaty of Nice
In 2001, a referendum was held in Ireland to approve the Treaty of Nice. However the Treaty of Nice was rejected by 54% of the Irish people in what is known as the Nice I referendum. The following year a second referendum was held on the Treaty of Nice, known as the Nice II referendum. Justin Barrett campaigned against the Nice Treaty in both referenda. Barrett, then 31 years-old, established the No to Nice campaign with Rory O'Hanlon, a retired High Court judge.