Indonesia's President Joko Widodo and his running mate Ma'ruf Amin react after a quick count result during the Indonesian elections in Jakarta, April 17, 2019. Jokowi is set to win the popular vote and is leading challenger Prabowo Subianto by between 7.5 and 11.6 percentage points, according to unofficial "quick counts" of a sample of votes by six pollsters. REUTERS/Edgar Su

Indonesia's President Joko Widodo reacts after a quick count result during the Indonesian elections in Jakarta, April 17, 2019. Incumbent President Joko Widodo winning the popular vote and ahead of his challenger by between 5.5 and 11.4 percentage points. REUTERS/Edgar Su

Indonesian President Joko Widodo casts his ballot during elections in Jakarta, April 17, 2019. REUTERS/Edgar Su

Indonesian President Joko Widodo and first lady Iriana Joko Widodo cast their ballots during elections in Jakarta, April 17, 2019. REUTERS/Edgar Su

Indonesian President Joko Widodo and first lady Iriana Joko Widodo show their ink-stained fingers after casting their ballots during elections in Jakarta, April 17, 2019. REUTERS/Edgar Su