One of William O'Brien's closest allies, he joined with him from 1910 and was elected as an All-for-Ireland Party (AFIL) MP in both elections that year,  retaining his seat until the December 1918 election when he stood down together with the other members of the AFIL party.
One of William O'Brien's most trusted associates, he joined him from 1910 and was elected as an All-for-Ireland Party (AFIL) MP in both elections that year, retaining his seat until the December 1918 election when he withdrew along with the other AFIL party members.