How to pronounce“canvasser”in English

When I think about all the canvassers and organizers I've had working for me now in the last 11 years, I've had hundreds and hundreds of organizers,

Have you been partnering with the major political parties and the individual campaigns to make sure that their canvassers are kind of getting the word out?

Now, what I'm saying is that therefore, there's a tiny part of me that thinks that when Labour Party canvassers were saying on the doorstep in Workington,

sitting here -- the ability to share that instantaneously, to look at an ap and say, "Hey look, the Obama office down the street is short four canvassers?