text:  This year, voters in over 60 countries, including the world's four largest democracies, are going to the polls. In many cases, these voters are frustrated with incumbents. By and large, people are unhappy with their governments, much more unhappy with their governments than they were 10, 30, 20, 30, 40 years ago. Experts say this could have far-reaching implications for democracy itself. I'm Scott Detrow. Hear more on all things considered from NPR News.