Canada

No, they're just random far-right wingnuts, for the most part. Pretty much anyone living in Alberta could buy a party membership and attend. Same as the NDP, or whatever party you support in whichever province you're in.

Edit: Its worth addressing that generally, there's a tacit understanding that the resolutions are more of a wishlist, and most will be ignored. The people willing to spend their own money on a weekend of meetings tend to be "opinionated", and regardless of party to come up with ideas pretty far from electability. So, the real democracy happens when they pick a leader.

This is not the case in the UCP. Their membership is fully in that extremist vortex where they care less about electability than posturing, and have made their willingness to oust a leader that doesn't play along known. Usually that gets you owned in general elections, but because Albertans tend to blindly vote the same way every time I do still worry.