Indonesia’s opposition party says President Joko Widodo’s election victory was made possible through “systematic electoral fraud and abuse of power.”
Their lawyers made the argument to the Constitutional Court on Friday.
Security was tightened at the court as the country’s opposition party took their latest step to push for fresh elections.
Last month’s vote ended with Widodo beating Prabowo Subianto by 11 percentage points, according to the General Election Commission.
However his opponent has refused to concede defeat and is instead calling for fresh countrywide elections.
Indonesia is the world's third biggest democracy.

Rescuers search for 140 people after Indonesia ferry hits bad weather
Philippine ferry fire victims may take months to identify, authorities say
Saudi Arabia shuts key oil pipeline after drone attack
BRICS members agree joint declaration at New Delhi summit
Death toll in Philippine ferry fire rises to 76 as rescuers recover more remains
