Brazil elections 2018: could a lack of legitimacy make the country ungovernable?

Brazil's elections in October 2018 are likely to see unusually high levels of abstention. With legitimacy undermined both by the vast Lava Jato corruption scandal and by the horse-trading typical of Brazil's hotly contested political system, the effectiveness of governance is likely to deteriorate even further, writes Mark S. Langevin (George Mason University).