Malaysian Prime Ministerial candidate Mahathir Mohamad

It's shaping up as another big year for elections (here's my review of how 2017 went down). Five of the G20 countries will vote in 2018 (although one of them, Russia, can't really be counted as a democracy), not to mention the possibility of early elections in some others -- Australia, Germany and the United Kingdom all have problems that could send them back to the polls.