POLITICO's Nick Taylor-Vaisey and Calder McHugh break down the latest Ottawa bombshell, as another Conservative MP crosses the floor to join Mark Carney’s Liberals ahead of the party’s convention in Montreal. Plus, a closer look at the Liberal mood on the ground as delegates gather for a high-energy weekend. Finally, what the U.S.-Iran ceasefire could mean next, including the potential fallout on gas prices in Canada.