Polish Prime Minister Mateusz Morawiecki attends the European Union leaders summit in Brussels, Belgium June 29, 2023. REUTERS/Johanna Geron/File PhotoWARSAW, Aug 14 (Reuters) - The Polish government wants to pose questions to voters during a Oct. 15 election that will include whether Poland should take in "thousands of illegal immigrants", a move rivals say aims to swing the vote by misleading voters about opposition policies.The ruling nationalist Law and Justice (PiS) party said it had finalised four questions for what says is a referendum to coincide with the vote, covering...