He was booed in Scotland. In Wales, a chicken submitted to his embrace, but politicians held him at arm’s length. And in Northern Ireland, there were rumblings of Irish unity — which could only come at the expense of its ties to the rest of the United Kingdom.

Mary Lou McDonald has urged Northern Ireland's voters to back pro-remain candidates in the European election. / The Sinn Féin president called for her party's candidate, Martina Anderson, to be given the number one preference, before transferring to "pro-remain, progressive candidates".

As Brexit looms, nationalists in Northern Ireland are increasingly looking to Dublin for representation. Now, as Ben Kelly explains, political parties are responding in new, innovative ways.

It is "irresponsible" for the Irish government to say a border poll should not be held at the moment due to uncertainty about Brexit, Sinn Féin president Mary Lou McDonald has said.

Mary Lou McDonald says there is a ‘growing demand’ for unity poll.