On the Assembly , he was a leading supporter of power sharing , active in negotiations with the Social Democratic and Labour Party .
He stood for the UUP in South Antrim at the 1973 Northern Ireland Assembly election , where he was the last candidate elected .
On the Northern Ireland Assembly , candidate was a leading candidate of power sharing , active in negotiations with the Social Democratic and Labour Party .
He stood for the UUP in South Antrim at the 1973 Northern Ireland Assembly election , where he was the last candidate elected .