evidence: Northern Ireland would vote decisively against a united Ireland if there was a Border poll, according to an Ipsos opinion poll for a new research project into North-South relations and political views on the future of the island. [...] Half of all respondents (50 per cent) in Northern Ireland said they would vote against Irish unity, which included 21 per cent of those from a Catholic background. Just over a quarter (26 per cent) in the North said they would vote for unity, while 19 per cent said they didn’t know how they would vote and 5 per cent said they would not vote.