McCartney further established his UK Unionist Party and sought to challenge the existing unionist parties by offering a less sectarian alternative. He held his seat in the 1997 election and was also elected to both the Northern Ireland Peace Forum in 1996 and the Northern Ireland Assembly in 1998, though on each occasion he was the only UK Unionist elected from North Down. In the 1998 Assembly election the Ulster Unionists had their strongest result in the province and there was much speculation that they could unseat McCartney at the next general election.