Leaders of the governing pro-independence parties in Scotland, Wales, and Northern Ireland will meet in Cardiff on Monday to sign a joint declaration calling for independence referendums, two days after President Donald Trump said he would "love" to see a unified Ireland. As of Sunday, Scottish First Minister John Swinney of the SNP, Welsh First Minister Rhun ap Iorwerth of Plaid Cymru, and Northern Ireland First Minister Michelle O'Neill of Sinn Fein are set to sign a memorandum of understanding calling for referendums on their nations' constitutional futures. The three will meet as party leaders rather than in their government...