Open this photo in gallery: Speaker of the House of Commons Anthony Rota rises in the House of Commons on Parliament Hill in Ottawa, on Sept. 25, 2023. Mr. Rota called Yaroslav Hunka a Canadian and Ukrainian hero after Ukrainian President Volodymyr Zelensky spoke in the House during an official visit to Canada.Justin Tang/The Canadian Press Former Commons Speaker Anthony Rota is being urged to appear before a House of Commons committee to explain his decision to invite and honour Yaroslav Hunka, a Waffen-SS veteran, during an address by Ukrainian President Volodymyr Zelensky last September. Conservative MPs presented a motion...