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.
A close associate of William O'Brien, he collaborated with him from 1910 and was elected as an All-for-Ireland Party (AFIL) MP in both elections that year, maintaining his position until the December 1918 election when he resigned along with the other AFIL party members.