As Prime Minister Mark Carney accepts a fifth floor-crosser into the Liberal caucus from across the political spectrum, how big is too big of a tent? The Political Panel weighs in on how floor-crossers are shaking up the dynamics on Parliament Hill. This show is also available on Spotify, Apple Podcasts, or your favourite podcast app: https://link.mgln.ai/A2q4qn »»» Subscribe to CBC News to watch more videos: http://bit.ly/1RreYWS For breaking news, video, audio and in-depth coverage: https://