With Elections Coming Why Are So Many Incumbent Governments In Trouble?

It's said that half the countries in the world that have elections will have them this year. But it seems that in many of those countries the incumbent party is in trouble and set to lose. Why? Our guest, Andrew MacDougall, knows politics as a former Director of Communications for Stephen Harper while Harper was prime minister, and is now a consultant for the Trafalgar Strategy Group in London, England.