Arnie Sherman and I spent a full hour with Mayor John Engen this past week for our next installment of What do you know? - airing this coming Sunday morning at 8:00AM here on Newstalk KGVO. No topic off limits, as we discussed the Mountain Water issues and opportunities, his recent bariatric surgery, recovery and new health regimen.  We discussed bringing new business to Missoula, the presidential primaries and other related topics. His candor and openness was great and we look forward to having him on again on our show.  Listen this Sunday at 8:00 AM and on-demand after the show on