Senegal’s former leader Macky Sall, who earlier this year sparked one of the worst crises in decades by delaying the presidential election, is seeking a controversial comeback in Sunday’s snap parliamentary elections.

Sall left office in April after 12 years in power, handing over the reins to his successor Bassirou Diomaye Faye and departing Senegal for Morocco.

The ex-president is now leading a newly formed opposition coalition from abroad, raising questions over the motives behind his return to the political fray and what it could mean for the West African country.

Sall’s longtime political foe, current Prime Minister Ousmane Sonko, has repeatedly suggested that members of the former administration, including Sall, could be brought before the courts.

He has accused Sall’s administration of leaving behind “catastrophic” public finances and manipulating financial figures given to international partners, which the previous leaders deny.