From the Document: "Voters in Indonesia, the world's most populous Muslim-majority nation, are scheduled to go to the polls on April 17 to elect a President and the 560 members of the People's Representative Council, Indonesia's national Parliament. This will be Indonesia's fourth direct presidential election and the first time presidential and parliamentary polls are to be simultaneous. It is also expected to be one of the largest democratic exercises in the world: among democracies, Indonesia trails only India and the United States in the size of its electorate. The presidential polls pit the same two candidates who contested the last elections in 2014: President Joko Widodo and former army Special Forces commander Prabowo Subianto. Widodo, almost universally known by his nickname, Jokowi, won the bitterly contested previous election by 9 million votes. Most opinion polls show him once again holding a lead over Prabowo, but the advantage may be narrowing as election day nears."
CRS Insight, IN11077
Congressional Research Service: https://crsreports.congress.gov/