PrimeTime Politics MPs Candice Hoeppner (Conservative), Mark Holland (Liberal) and Joe Comartin (NDP) join Peter Van Dusen to discuss the gun registry and the latest Liberal motion to end Bill C-391, Conservative legislation aimed at scrapping the registry.  Martin Stringer interviews Commonwealth Secretary-General Kamalesh Sharma on the upcoming G20 Summit hosted by Canada. Also on the program, we welcome our journalists panel – National Post columnist John Ivison and Canadian Press reporter Joan Bryden – to comment on the latest talks of a merger between the Liberals and the NDP. Also: The House of Commons Government Operations Committee hears from lawyer Arthur Hamilton on allegations related to improper lobbying by former MP Rahim Jaffer.