It's easy-to-get high support for spending money on defense when you frame it in a vacuum, as seen in the first poll. But opinions change quick when you ask people what they would be willing to cut to get it, as seen in the second support falls off. Ask them still how to pay for it, and would they be willing to increase their tax payment for it, and support falls still.

Trudeau is right, short of a war footing Canada will never make the aspirational, entirely not mandatory, 2% NATO spending goal. No prime minister has even tried in the decades of the goal being set.